Description : A number is selected at random from first 50 natural numbers. Find the probability that it is a multiple of 3 and 4. a. 3/25 b. 2/25 c. 1/25 d. 13/50
Last Answer : b. 2/25
Description : Rs.4900 was divided among a group of 150 children. If each girl gets Rs.50 and each boy gets Rs.25 then, the number of boys in the group is: (a) 100 (b) 102 (c) 104 (d) 105
Last Answer : (c) 104
Description : If cosec A = 5/4 ,then cot A = (a) ) 4/5 (b) 50/40 (c) 3/4 (d) 4/3
Last Answer : (c) 3/4
Description : Can you tender a one rupee note in such a manner that there shall be total 50 coins but none of them would be 2 paise coins?
Last Answer : Answer: 45 one paisa coins, 2 five paise coins, 2 ten paise coins, and 1 twenty-five paise coins.
Description : What is the value of .03 x .50?
Last Answer : Try converting everything to exponential notation or think “what is half of .03?”.
Description : If the HCF of 65 and 117 is expressible in the form 65m – 117, then the value of m is (a) 4 (b) 2 (c) 1 (d) 3
Last Answer : (b) 2
Description : ABCD is a parallelogram with diagonal AC If a line XZ is drawn such that XZ ∥ AB, then BX/XC = ? (a) (AY/AC) (b) DZ/AZ (c) AZ/ZD (d) AC/AY Answer: (c) AZ/ZD 13. In the given figure, value of x (in cm) is (a) 5cm (b) 3.6 cm (c) 3.2 cm (d) 10 cm
Last Answer : (a) 5cm
Description : Value of p(3) + p(1) =a) 0 b) 1 c) 2 d) 3
Last Answer : c) 2
Description : Value of polynomial when x = -1 is: a) 12 b) 13 c) 14 d) -12
Last Answer : a) 12
Description : The value of quadratic polynomial f (x) = 2x 2 – 3x- 2 at x = -2 is ...... (a) 12 (b) 15 (c) -12 (d) 16
Last Answer : (a) 12
Description : What value/s can x take in the expression k(x – 10) (x + 10) = 0 where k is any real number. (a) 100, -100 (b) Infinitely many (c) Depends on value of k (d) 10, -10
Last Answer : (d) 10, -10
Description : If ̳α ‘ and ̳β ‘ are the zeroes of a quadratic polynomial x 2 − 5x + b and α − β = 1, then the value of ̳b‘ is (a) – 5 (b) 6 (c) 5 (d) – 6
Last Answer : (b) 6
Description : If α , β are the zeroes of f(x) = px 2 – 2x + 3p and α + β = αβ then the value of p is: (a) 1/3 (b) -2/3 (c) 2/3 (d) -1/3
Last Answer : (c) 2/3
Description : If α and 1/α are the zeroes of the polynomial ax2 + bx + c, then value of c is (a) 0(b) a (c) -a (d) 1
Last Answer : (a) 0
Description : If one zero of the quadratic polynomial x 2 + 3x + k is 2, then the value of k is (a) 10 (b) –10 (c) 5 (d) –5
Last Answer : (b) –10
Description : The value of x and y which satisfy the equations : √ e) x=1,y=0 f) x=0,y=0 g) x=1,y=1 h) x=0,y=1
Last Answer : f) x=0,y=0
Description : The value of m obtained on solving equations : 2n + m =2n – m = √ a) 1/4 b) 0 c) 1/2 d) 3/4
Last Answer : b) 0
Description : For what value of k , the following system of equations have infinite solutions : kx + 4y = k-4, 16x + ky = k (a) k = 2 (b) k = 4 (c) k = 6 (d) k = 8
Last Answer : (d) k = 8
Description : What is the value of x, y in the following pair of linear equations: 4x + = 15 , 6x – = 14 ? (a) 3,2 (b) -3,-2 (c) 3,-2 (d) -3,2
Last Answer : (a) 3,2
Description : In the given figure, AB is the diameter where AP = 12 cm and PB = 16 cm. If the value of π is taken 3, what is the perimeter of the shaded region? (a) 58 cm (b) 116 cm (c) 29 cm (d) 156 cm
Last Answer : (a) 58 cm
Description : The value of x and y which satisfy the equations : √ a) x=1,y=0 b) x=0,y=0 c) x=1,y=1 d) x=0,y=1
Last Answer : b) x=0,y=0
Description : If the distance between the points (4, p) and (1, 0) is 5units , then the value of p is: (a) 4 only (b) 0 (c) – 4 only (d) 4, - 4
Last Answer : (d) 4, - 4
Description : The point (-1,2) divides the line segment joining the points A(2,5) and B(x,y) in the ratio 3:4, then the value of x2 + y2 is : (a) 27 (b) 28 (c) 29 (d) 30
Last Answer : (c) 29
Description : If A(5,2), B(2,-2) and C(-2,t) are the vertices of a right angled triangle with ∠B = 900 , then the value of t is: (a) -1 (b) 1 (c) -2 (d) 2
Last Answer : (b) 1
Description : If the centroid of △ABC in which A(a,b), B(b,c) and C(c,a) is at the origin, then the value of a3 + b3 + c3 is: (a) abc (b) 2abc (c) 3abc (d) 0
Last Answer : (c) 3abc
Description : Assertion (A) : The value of k for which the system of linear equations kx+2y+1=0 and 6x+4y-5=0 has a unique solution is 3. Reason (R):The system of linear equations a1x + b1y + c1= 0 and a2x + ... not the correct explanation of A. (c) A is correct; R is incorrect. (d) R is correct; A is incorrect.
Last Answer : (d) R is correct; A is incorrect.
Description : If (x, y) is a solution of the following pair of linear equations in two variables, then the value of expression (√ is: x + 2y = 4 and 3x - y = 5 (a) 2 (b) 3 (c) 4 (d) √2
Last Answer : (a) 2
Description : The value(s) of 'k' for which the following pair of linear equations will represent a pair of intersecting lines graphically is/are: 3x - 4y + 7 = 0 kx - 8y = 5 (a) k = 6 (b) k ≠ 6(c) any real number (d) any real number except 6
Last Answer : (d) any real number except 6
Description : The value of sec A or cosec A is always —————- a. Less than or equal to one b. Greater than or equal to one c. Equal to one d. Negative
Last Answer : b. Greater than or equal to one
Description : The value of sin A or cos A never exceeds ————a. One b. Two c. Three d Four
Last Answer : a. One
Description : In the given figure, if AB = 14 cm, BD = 10 cm and DC = 8 cm, then the value of tan B is a) 4/3 b) 14/3 c) 11/3 d) 9/12
Last Answer : a) 4/3
Description : The value of 2 tan 2 45°+ cos 2 30° − sin 2 60° is (a) 0 (b) 1 (c) -2 (d) 2
Last Answer : (d) 2
Description : Given that sin A=1/2 and cos B=1/√2 then the value of (A + B) is: (a)30 (b)45 (c)75 (d)60
Last Answer : (c)75
Description : In right triangle ABC, right angled at C, if tan A = 1, then the value of 2 sin A cos A is (a) 0 (b) 1 (c) – 1 (d) 2
Description : The value of sin 60° cos 30° + sin 30° cos 60° is: a 0 b 1 c 2 d 4
Last Answer : b 1
Description : In ∆ ABC, right-angled at B, AB = 24 cm, BC = 7 cm. The value of tan C is: a 12/7 b 24/7 c 20/7 d 7/24
Last Answer : b 24/7
Description : The opposite sides of dice always add up to what value?
Last Answer : 7.
Description : Find the least value of 3x + 4y if x2y3 = 6.
Last Answer : Answer: 10.
Description : If Log2 x - 5 Log x + 6 = 0, then what would the value(s) of x be?
Last Answer : Answer: x = e2 or e3.
Description : If x=y=2z and xyz=256 then what is the value of x? (a)12 (b)8 (c)16 (d)6
Last Answer : (b)8
Description : Soil air contains CO2 (%) (A)0.03 (B) 2.50 (C) 0.25 (D) 3.0
Last Answer : (C) 0.25
Description : Is it possible to solve a magic square made up of a system of unknown symbols?
Last Answer : No. I could populate a 9×9 magic square with the letters A through I. You would never figure out what numbers were represented by the letters because a 9×9 magic square is not unique.
Description : Did we invent math,or did we discover it?
Last Answer : God invented it.
Description : How many of you can pass this simple test?
Last Answer : I can.
Description : How can two infinite sets not have one to one correspondence with each other?
Last Answer : You've missed what an infinite set means. Consider this definition: Infinite sets are the sets containing an uncountable or infinite number of elements. Infinite sets are also called uncountable sets. That is ... . Or for the set of all positive integers and the set of all negative integers .
Description : Using the rays in the diagram, how many different acute angles can be formed?
Last Answer : We don’t do your homework, but this is a simple combinatorics problem. Any pair of those rays will form an acute angle. How many pairs are there?