Description : In a class of 55 students, the number of students studying different subjects are 23 in Mathematics, 24 in Physics, 19 in Chemistry, 12 in Mathematics
Last Answer : In a class of 55 students, the number of students studying different subjects are 23 in Mathematics, 24 in Physics, 19 ... ` B. `30` C. `22` D. `27`
Description : In a class 140 students numbered 1 to 140, all even numbered students opted Mathematics course, those whose number is divisible by 3 opted Physics cou
Last Answer : In a class 140 students numbered 1 to 140, all even numbered students opted Mathematics course, those whose number is ... B. `42` C. `102` D. `1`
Description : In a class test, the sum of marks obtained by P in Mathematics and Science is 28. Had he got 3 more marks in Mathematics and 4 marks less in Science, the product of marks obtained in the two subjects would have been 180? Find the marks obtained in two subjects separately. -Maths 10th
Last Answer : Let P has obtained x in mathematics and y in science. Then by the problem, x+y=28.......(1). If P would have got 3 marks more in mathematics, then P would have got (x+3) in mathematics ... P obtained 12 marks in mathematics and 16 in science. or, P obtained 9 marks in mathematics and 19 in science.
Description : The average height of 50 students in a class is 182 cm. 40 students whose average height is 182.5 cm left the class and 50 students whose average height is 180.5 cm joined the class. Find the average height of the present? A) 180.41 B) 175.5 C) 180.55 D) 185.5
Last Answer : A) The average of the students leaving the class as well as joining the class to be 182 so that the average remains the same. But it is given that the average of the 40 students leaving the class is 182. ... strength of the class. Hence the average of the present class = 182 - 95/60 = 180.5 cm
Description : Which of the following is not an element of the ethical research? a. Protecting subjects rights b. Obtaining informed consent c. Obtaining institutional approval d. Unbalancing the benefits and the risk in the study
Last Answer : d. Unbalancing the benefits and the risk in the study
Description : Nandita scores 60% marks in five subjects together, viz., Hindi, Science, Mathematics, English and Sanskrit, where in the maximum marks of each subject were 105. How many marks did Nandita score in Science, if she scored 69 ... and 51 marks in English? a) 66 b) 68 c) 55 d) 65 e) None of these
Last Answer : Answer: D Total of maximum marks of all subjects=105×5=525 75% of 525=525 ×60/100= 315 Obtained marks of foru subjects (Hindi, Sanskrit, mathematics and English) =69+62+68+51=250 So, the obtained marks in Science=315-250=65
Description : Nesha scored 120 out of 150 in English, 120 out of 180 in mathematics and 160 out of 200 in Science. Find Nesha’s score as percentage: (i) in Mathematics (ii) in all the three subjects (on the whole). a) 66 2/3, 78 22/51 b) 71 23/5, 45 7/31 c) 54 13/33, 82 3/4 d) 60 3/4, 76 32/41
Last Answer : Answer: A (i) Percentage scored in Mathematics = 120/180 100 = 12000/180 =1200/18 = 66 2 /3 % (ii) Total maximum of all the three subjects = 150 + 160 + 200 = 510 and Total score in the ... percentage on the whole = (400/510 100) = (40000/510) = 4000/51 = 78 22/51 %
Description : In a mathematics test given to 15 students, the following marks (out of 100) are recorded : -Maths 9th
Last Answer : For Mean : As we know that ⇒ x̅ = 41 + 39 + 48 + 52 + 46 + 62 + 54 + 40 + 96 + 52 + 98 + 40 + 42 + 52 + 60 / 15 x̅ = 822 / 15 = 54.8 ⇒ x̅ = 54.8 For Median : First of ... 52 For Mode : Make a frequency table for given data : Here, the marks 52 has the maximum frequency '3'. ∴ Mode = 52
Description : In a diagnostic test in mathematics given to students, the following marks (out of 100) are recorded 46, 52, 48, 11, 41, 62, 54, 53, 96, 40, 98 and 44. -Maths 9th
Last Answer : NEED ANSWER
Last Answer : Median will be a good representative of the data, because 1.each value occurs once. 2.the data is influenced by extreme values.
Description : What can I do with a physics and mathematics degree?
Last Answer : You would do much better in either of those fields with an advanced degree.
Description : Can you help me come up with a name for my personal blog of physics and mathematics?
Last Answer : My vote is in favour of TrivialQED. As someone who has extremely minimal knowledge in the way of both math and physics, a humourous title such as that one would be more likely to catch my attention ... read blogs about topics I know nothing about - especially if the writer injects a bit of humour.)
Description : In which of the following fields Nobel Prize is not given ? (1) Physics (2) Mathematics (3) Chemistry (4) Medicine
Last Answer : Mathematics
Description : The average age of the students in a class is 14. The average age of half of the students in that class and the class teacher is 16. The average age of the remaining half of the students is 15. What is the number of students in that class? a) 20 b) 70 c) 80 d) Cannot be determined e) None of these
Last Answer : Because total no. of students is not known we cannot find the answer. Answer: d)
Description : Cell physiology includes application of most of law’s of which subjects. a. Biology b. Chemistry c. Physics and Chemistry d. Physics
Last Answer : Physics and Chemistry
Description : In an examination of a certain class, at least `70%` of the students failed in Physics, at least `72%` failed in Chemistry, at least `80%` failed in M
Last Answer : In an examination of a certain class, at least `70%` of the students failed in Physics, at ... 15%` D. Cannot be determined due to insufficient data
Description : The velocity-time graph shows the motion of a cyclist. Find (i) its acceleration (ii) its velocity (iii) the distance covered by the cyclist in 15 seconds Numerical Questions and answers on Motion for Class 9 physics -Science
Last Answer : (i) We can see from the graph that velocity is not changing So,acceleration is equal to zero. (ii) By Reading the graph, velocity = 20 m/s (iii) Distance covered in 15 seconds, s=u×t=20×15=300s=u×t=20×15=300 m
Description : The product of two numbers is 4107. If the H.C.F. of these numbers is 37, then the greater number is: A.124 B.100 C.111 D.175 E.None of these
Last Answer : Answer – C (111) Explanation – Let the numbers be 37a and 37b. Then, 37a x 37b = 4107 ab = 3. Now, co-primes with product 3 are (1, 3). So, the required numbers are (37 x 1, 37 x 3) i.e., (37, 111). Greater number = 111.
Description : Which of the following statements(s) is/are true concerning human energy requirement? a. In normal subjects, less than 5% of basal energy requirement is spent on cardiac output and the ... d. Similar increases in energy expenditures are associated with elective surgery and trauma or thermal injury
Last Answer : Answer: a, c Basal energy requirements are measured with the subject at rest when no external work is being done; the energy is used mainly for transport and synthetic work within cells. A ... average-sized adult who sustains a major burn rarely may require more than 3500 kcal/day for maintenance
Description : The mean marks obtained by a class of 40 students is 65. The mean marks of half of the students is found to be 45. The mean marks of the remaining students is (A) 85 (B) 60 (C) 70 (D) 65
Last Answer : Answer: A
Description : I am a word. My first four letters refer to a mark on a person's skin; three letters found in the middle refer to what all mathematics students know. My last four letters refer to a place where ... and my whole is familiar to all economics students. I am an eight letter word. What am I? -Riddles
Last Answer : Scarcity
Description : A problem in mathematics is given to four students A, B, C and D. Their chances of solving the problem -Maths 9th
Last Answer : Given, P(A) = \(rac{1}{2}\) ⇒ P(\(\bar{A}\)) = P(A not solving the problem) = 1 - \(rac{1}{2}\) = \(rac{1}{2}\)P(B) = \(rac{1}{3}\) ⇒ P(\(\bar{B}\)) = 1 - \(rac{1}{3}\) = \(rac{2}{3}\)P(C) = \ ... 3}{4}\)x \(rac{4}{5}\) = \(rac{1}{5}\)∴ P(problem will be solved) = 1 - \(rac{1}{5}\) = \(rac{4}{5}\).
Description : In a monthly test, 10 students were awarded marks in a Mathematics examination as follows: 23, 25, 15, 20, 17, 10, 24, 15, 19 If a student is selected
Last Answer : In a monthly test, 10 students were awarded marks in a Mathematics examination as follows: 23, 25 ... the probability that he gets more than 18 marks?
Description : When a teacher ensures that students complete an exercise in mathematics and makes sure instructions are clear and specific. The teacher ensures the ........ aspect of assessment Options: A) A Validity B) Practicality C) Reliability D) Wash-back effect
Last Answer : A) A Validity
Description : What is the approximate path loss from satellite-to-earth station? A. 100 dB B. 150 dB C. 175 dB D. 200 dB
Last Answer : D. 200 dB
Description : How much calories (cal) may be obtained from 100 gram chicken egg ? (A) 175 cal (B) 180 cal (C) 160 cal (D) 130 cal
Last Answer : (C) 160 cal
Description : An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm placed symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the stress is (A) 49.9 kg/cm2 (B) 100 kg/cm2 (C) 250 kg/cm2 (D) 175 kg/cm
Last Answer : Answer: Option A
Description : The diameter of a domestic sewer pipe laid at gradient 1 in 100 is recommended (A) 100 mm (B) 150 mm (C) 200 mm (D) 175 mm
Last Answer : (B) 150 mm
Description : Frequency of TTM tamping on PSC sleepers track a. 2 years or 100 GMT which ever is earlier* b. 2 years or 150 GMT which ever is earlier c. 1.5 years or 200 GMT which ever is earlier d. 2 years or 175 GMT which ever is earlier
Last Answer : a. 2 years or 100 GMT which ever is earlier*
Description : In helping students to make educational plants, it is unwise to for them to Options: A) Mix general with vocational subjects B) Select all their subjects from one field C) Take typing with college preparatory subjects D) Plan their programmes more than a year ahead
Last Answer : B) Select all their subjects from one field
Description : Do you favor a law that subjects high school students to random drug testing if they participate in extracurricular activities or drive to school?
Last Answer : No I would be against it. I would be more in favor of affording students access to mental health support. Kids are under a ton of pressure both in school and out of school and I am ... many kids could unknowingly or knowingly using drugs and alcohol to self medicate to deal with stress and anxiety.
Last Answer : www.khanacademy.com This website .
Description : Why do you support the five stage method of Herbart? Options: A) In this there is no scope for individual diversity of students. B) Under this, generalization is not required to be done while ... In this method, it is difficult to make co-ordination between various subjects. D) All of these
Last Answer : D) All of these
Description : Teachers who are enthusiastic in the classroom teaching Options: A) often lack proficiency in the subjects which stays hidden under their enthusiasm B) simply dramatize to hold the student’s attention. C) involve their students in the teaching learning process D) All of these
Last Answer : C) involve their students in the teaching learning process
Description : In an examination, 35%of the total students failed in Hindi, 45%failed in English and 20%in both. The percentage of those who passed in both subjects is (A) 10 (B) 20 (C) 30 (D) 40
Last Answer : Answer: D
Description : The given table shows the month of birth of 40 students of class IX of a particular section in a school. -Maths 9th
Last Answer : (a) P (later half of the year) = 23 / 40 (b) P (month having 31 days) = 26 / 40 = 13 / 20 (c) P(month having 30 days) = 10 / 40 = 1 / 4
Description : You have used a spreadsheet to calculate the average marks of a class in Mathematics. -Technology
Last Answer : (b) Marks of each student tor Mathematics will be required for calculating average marks of mathematics.
Description : There are 200 questions on a 3 hour examination. Among 200 questions,50 are from Maths, 100 are in G.K, and 50 are in Science. He spent twice as much as time on each Mathematics question as for each other ... minutes did he spend on Mathematics question? a) 100 b) 60 c) 36 d) 72 e) None of these
Last Answer : Ratio of questions on Mathematics and others =50 : 150 =1 : 3 Ratio of time spent on Mathematics and other questions = (1 × 2) : (3 × 1) = 2 : 3 Time spent on Mathematics =2/5 × 180 minutes =72 minutes Answer: d)
Description : The number of subjects in the Union List of the Indian Constitution is – (1) 47 (2) 66 (3) 97 (4) 100
Last Answer : (3) 97 Explanation: 97 subjects are defined and enlisted under the List- I of the Seventh Schedule of the Constitution of India, which form the exclusive domain of the Central Government of the Union of India excluding all the states and the union territories.
Description : Determine the ratio of the number of people having characteristic X to the number of people having characteristic Y in a population of 100 subjects from the following table People having X and Y are 20 People having X but not Y are 10 ... 3 : 5 b) 3 : 2 c) 1 : 2 d) 2 : 3 e) None of these
Last Answer : Answer: A Number of people having characteristic X = 10 + 20 = 30 Number of people having characteristic Y = 20 + 30 = 50 Therefore Required ratio = 30 : 50 = 3 : 5
Description : The students in three classes are in the ratio 4 : 6 : 9. If 12 students are increased in each class, the ratio changes to 7 : 9 : 12. Then the total number of students in the three classes before the increase is: a) 95 b) 76 c) 100 d) 114 e) None of these
Last Answer : Answer: B Let originally were 4x, 6x and 9x student there in classes receptively. After 12 students increase in each student then students were 7x, 9x and 12x in each class respectively. Now, Total Students = 7x + 9x ... number of student in three classes, = 4x + 6x + 9x = 19x = 19 * 4 = 76.
Description : How can I prevent other people from obtaining my laptop's data?
Last Answer : Have the data transferred then remove the HDD before giving it to your relative (after all the PC is not functioning). Alternatively ask the tech that is transferring the data to wipe the drive when he’s finished.
Description : What is the most accurate method of obtaining project information that can reduce the amount of risk? 1. Observations on the current project 2. Determining the risk by using brainstorming ... from previous projects that were similar in nature 4. Sensitivity analysis 5. Delphi technique.
Last Answer : 3. The use of historical data from previous projects that were similar in nature
Description : What is a good device to use for obtaining viscosity data for a non-Newtonian fluid?
Last Answer : Consider a rotational viscometer. It will measure the shear rate applied and the subsequent viscosity at the same time. You can also vary the temperature and time the stresses are applied ... shows that this product exhibits a marked shear thinning viscosity profile over the test conditions.
Description : Autonomy in clinical studied is defined as a) Freedom, dignity and confidentiality of the subject; right to choose i.e. whether or not to participate in the trial or to continue with ... . d) Observance of fairness, honesty and impartiality in obtaining, analyzing & communicating the data.
Last Answer : a) Freedom, dignity and confidentiality of the subject; right to choose i.e. whether or not to participate in the trial or to continue with it.
Description : What is a branch of mathematics that deals with the collection classification description and interpretation of data obtained by the conduct of surveys and experiments?
Last Answer : It is statistics.
Description : The principles of antihypertensive drug usage enunciated in JNC VI and WHO-ISH guidelines include the following except: A. Therapy for grade I and II hypertension should be initiated with a single drug ... initially fails to lower BP, it should be replaced by a drug/combination from another class
Last Answer : C. All subjects with BP higher than 140/90 mmHg should be put on antihypertensive medication immediately
Description : Classroom management research findings suggest that one of the most effective ways to maximize the amount of time elementary school children spend on academic activities is for the teacher to do ... Introduce new material in a lecture followed immediately by a questioning session on the material.
Last Answer : A) Plan for, teach, and enforce routines for transition times and classroom housekeeping tasks.