Description : Find the number whose 614% is 2. -Maths
Last Answer : answer:
Description : Class 12 | Maths | Complex Numbers | Simplify -2i ( 3 + i )( 2 + 4i )( 1 + i ) and obtain the modulus of that complex number.
Last Answer : Solution :
Description : A number is increased by 10% and the increased num\ber is decreased by 10%. Show that the net decrease is 1 -Maths
Description : 70% of the students in a school are boys and the number of girls is 504. Find the number of boys in the school. -Maths
Description : Class 12 | Maths | Complex Numbers | Simplify the following complex numbers and find their modulus.
Last Answer : Class 12 | Maths | Complex Numbers | Simplify the following complex numbers and find their modulus.
Description : Maths | Complex Numbers | If √3 + i = r (cosθ + i sinθ), then find the value of θ in radian measure.
Description : Class 12 | Maths | Complex Numbers | Express the complex numbers modulus-amplitude form - √3 + i
Description : Fill in the blanks: (a) 1 lakh = ………….. ten thousand. (b) 1 million = …………… hundred thousand. (c) 1 crore = ………………. ten lakh. (d) 1 crore = ……………. million. (e) 1 million = ……………. lakh. -Maths
Last Answer : a) 10 (b) 10 (c) 10 (d) 10 (e) 10
Description : The population of a town increases at 5% per annum. Its present population is 16000. What will be its population after 2 years? -Maths
Description : The value of a machine depriciates at the rate of 10% per annum. If its present value is Rs 10000, what will be its value after 2 years? -Maths
Description : (i) What per cent of 1 kg is 125 g? (ii) What per cent of 80 m is 24 m? -Maths
Description : An ore contains 12% copper. How many kilograms of the ore are required to get 69 kg of copper? -Maths
Last Answer : 579 kg is the answer
Description : 96% of the cost of a TV is Rs 10464. What is its total cost? -Maths
Description : The excise duty on a certain item has been reduced to Rs 760 from Rs 950. Find the reduction per cent in the excise duy on that item. -Maths
Description : The monthly salary of a typist is Rs 15625. If he gets an increase of 12%, find his new salary. -Maths
Description : Rupesh secures 495 marks out of 750 in his annual examination. Find the percentage of marks obtained by him. -Maths
Description : What percentage is (i) Rs 15 of Rs 120? (ii) 36 minutes of 2 hours? (iii) 8 hours of 2 days (iv) 160 metres of 4 km? (v) 175 mL of 1 litre? (vi) 25 paise of Rs 4? -Maths
Description : What per cent of 84 is 14? -Maths
Description : If 12.5% of x is 6, find the value of x. -Maths
Description : What amount is 10% more than Rs 90? -Maths
Description : Find: (i) 25% of Rs 76 (ii) 20% of Rs 132 (iii) 7.5% of 600 m (iv) 313% of 90 km (v) 8.5% of 5 kg (vi) 20% of 12 litres -Maths
Description : Find: (i) 32% of 425 (ii) 1623% of 16 (iii) 6.5% of 400 (iv) 136% of 70 (v) 2.8% of 35 (vi) 0.6% of 45 -Maths
Description : Convert each of the following decimals into a percentage: (i) 0.6 (ii) 0.42 (iii) 0.07 (iv) 0.005 -Maths
Description : Convert each of the following into decimal form: (i) 45% (ii) 127% (iii) 3.6% (iv) 0.23% -Maths
Description : Convert each of the following ratios into a percentage: (i) 37 : 100 (ii) 16 : 25 (iii) 3 : 5 (iv) 5 : 4 -Maths
Description : Express each of the following as a ratio: (i) 43% (ii) 36% (iii) 7.5% (iv) 125% -Maths
Description : Convert each of the following fraction into a percentage: (i) 47 100 (ii) 9 20 (iii) 3 8 (iv) 8 125 (v) 19 500 (vi) 4 15 (vii) 2 3 (viii) 1 3 5 -Maths
Last Answer : We have the following: (i) 47100=47100×100% = 47% (ii) 920=920×100% =9×5%= 45% (iii) 38=38×100% =3×252%=752%=3712% (iv) 8125=8125×100%=8×45%=325%=6.4% (v) ... ;203%=803%=2623% (vii) 23=23×100%=2003%=6623% (viii) 135=85=85×100%=(8×20)%=160%
Description : Convert each of the following into a fraction: (i) 32% (ii) 614% (iii) 2623% (iv) 120% (v) 6.25% (vi) 0.8% (vii) 0.06% (viii) 22.75% -Maths
Description : Write each of the following as decimals: (a) 5 / 10 (b) 3 + 7 / 10 (c) 200 + 60 + 5 + 1 / 10 (d) 70 + 8 / 10 (e) 88 / 10 -Maths
Last Answer : (a) 5 / 10 = 0.5 (b) 3 + 7 / 10 = 3 + 0.7 = 3.7 (c) 200 + 60 + 5 + 1 / 10 = 265 + 0.1 = 265.1 (d) 70 + 8 / 10 = 70 + 0.8 = 70.8 (e) 88 / 10 = 80 / 10 + 8 / 10 = 8 + 0.8 = 8.8 (f) (g) 3 / 2 = (2 + 1) / ... + 0.5 = 1.5 (h) 2 / 5 = 0.4 (i) 12 / 5 = (10 + 2) / 5 = 10 / 5 + 2 / 5 = 2 + 0.4 = 2.4 (j) (k)
Description : Write each of the following as decimals: (a) Seven-tenths (b) Two tens and nine-tenths (c) Fourteen point six (d) One hundred and two ones (e) Six hundred point eight -Maths
Last Answer : (a) The decimal form of Seven-tenths is 7 / 10 = 0.7 (b) The decimal form of two tens and nine tenths is 20 + 9 / 10 = 20.9 (c) The decimal form of fourteen point six is 14.6 (d) The decimal form of one hundred and two ones is 100 + 2 = 102.0 (e) The decimal form of six hundred point eight is 600.8
Description : 65 is 13% of what number?
Last Answer : 500
Description : Specific dynamic action of proteins is about (A) 5% (B) 13% (C) 20% (D) 30%
Last Answer : Answer : D
Description : Specific dynamic action of carbohydrates is about (A) 5% (B) 13% (C) 20% (D) 30%
Last Answer : Answer : A
Description : Fat content of eggs is about (A) 7% (B) 10% (C) 13% (D) 16%
Last Answer : Answer : C
Description : Protein content of meat is about (A) 10% (B) 13% (C) 16% (D) 20%
Description : Protein content of egg is about (A) 10% (B) 13% (C) 16% (D) 20%
Last Answer : Answer : B
Description : ______ percent of Delhites are suffering from Asthma and Rhinitis. (1) 13% (2) 10% (3) 11% (4) 12%
Last Answer : (3) 11% Explanation: As per a recent survey conducted by Vallabhbhai Patel Chest Institute Delhi, more than an 11% of Delhiites are suffering from asthma and rhinitis. As per the survey, 11.69% were found to be suffering from rhinitis and 11.03% from asthma.
Description : Most common stainless steel type 316, which is highly resistant to corrosion contains (A) 16-13% Cr 10-14% Ni and 2-3% Mo (B) 20-22% Cr, and 8-10% Ni (C) 2-4% Cr, 22% NI and 2-4% Mo (D) None of these
Last Answer : (A) 16-13% Cr 10-14% Ni and 2-3% Mo
Description : The protein content in wheat is approximately? A. 8% B. 6% C. 13% (Answer) D. 17%
Last Answer : C. 13% (Answer)
Description : The Carbon Dioxide in the atmosphere, by volume, is----? 0.039% 3.9% 13%
Last Answer : 3.9%
Description : How much is the fat percentage in the milk of Bhadavari buffalo ? (a) 15 — 18% (b) 8 – 13% (c) 13 – 16% (d) 6 – 10%
Last Answer : (b) 8 – 13%
Description : Base suspension fertiliser essentially contains (A) 13% N2 and 43% P2O5 (B) 43% N2 and 13% P2O5 (C) 43% N2 and 13% K2O (D) 43% K2O and 43% P2O5
Last Answer : (A) 13% N2 and 43% P2O5
Description : Pearlite comprises of (A) 87% cementite & 13% Fe (B) 87% ferrite & 13% cementite (C) 93.33% ferrite & 6.67% C (D) 87% ferrite & 13% C
Last Answer : (B) 87% ferrite & 13% cementite
Description : 38% of 3976 +(32)2 – 13% of 8271 + 7/6 × 3400 =? a) 5427 b) 5325 c) 5537 d) 5612 e) 5554
Last Answer : ?=3976 × (38/100) + 1024 – 8271 × (13 / 100) + (7/6) × 3400 =1510.88 + 1024-1075.23 + 3966.66 =5426.31 ≈ 5427 Answer: a)
Description : A dealer buys an article marked at Rs. 50,000 at 25% and 10% successive discount. He spends Rs. 5000 on its repair and sells it for Rs. 50,000. What is his loss or gain percentage? 1. 33.63% loss 2. 26.43% gain 3. 1.25% gain 4. 29.03% 5. 27.13% loss
Last Answer : CP of the article
Description : Out of 50 quadrats studied, if Echinochloa is found in 26 quadrats, its frequency of occurrence would be a). 13% b). 26% c). 52% d). 68%
Last Answer : c). 52%
Description : _____ percent of Delhites are suffering from Asthma and Rhinitis. (1) 13% (2) 10% (3) 11% (4) 12%
Last Answer : 11%
Description : X invested 13% more than Y's investment. Y invested 18% less than investment of Z. X's investment is what percent of investment made by both Y and Z? A) 47.5. B) 50.9. C) 56.5 D) None
Last Answer : Answer: B) Let investment of Z be 100% Let Y’s investment is 82% Also A’s investment is 92.66% Required % =92.66/182*100= 50.9%
Description : Every year before the Diwali festival, the kumaran stores increases the price of the product by 48% and then introduce two successive discount of 12% and 13% respectively. What is percentage loss and percentage gain ?
Last Answer : Let CP = 100, 48 % increase =>SP = 148 12 % discount in SP => ((148 x 12)/100) = 17.76 So 1st SP = (148 – 17.76) = 130.24 13 % discount in 1st SP ((130.24x13)/100) = 16.93 2nd SP = 130.24-16.93= 113.31 So finally CP = 100, SP = 113.31 => gain = 13.31%
Description : In a certain occupation, the profit is 110% of the cost. If the cost increases by 13% but the selling price remains constant, approximately what percentage of the selling price is the profit?
Last Answer : Let Cp= RS.100 Profit= Rs 110 Sp= Rs 210 New Cp= 113%0f Rs.100=Rs. 113 New SP= Rs. 210 Profit= Rs. (210-113)= Rs. 97 Required %= 97/210*100=46%