Q&Answers: Math/Chemistry/Physics Problems + Solutions

0.01 is what percent of 0.1?

if 5 a = 3125, then the value of 5(a-3) is :

The average (arithmetic mean)T of the four distinct positive integers p, q, s and t is x.

If an integer n is to be chosen at random from the integers 1 to 96, inclusive, what is the probability that n(n + 1)(n + 2) will be divisible by 4?

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A train is 360 meter long is running at a speed of 56 km/hour.

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If the sum of a number and its square is 132, then what is the number?

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. How many shots of 1cm radius can be prepared from a sphere of 3cm radius?

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If c

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Arun took a loan of Rs. 1400 with simple interest for as many years as the rate of interest.

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Find the largest number of five digits which is exactly divisible by 12 and 15 ?

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Find H.C.F. of 0.63 and 1.05

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Jansi’s age is one-sixth of her mother’s age.

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If n is a positive integer and the product of all integers from 1 to n, inclusive, is a multiple of 440, what is the least possible value of n?

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If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be:

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Different breeds of dogs get older at different rates in “dog years.”

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If the sides of a triangle are 196 cm, 81 cm and 277 cm, what is its area?

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Presently a mixture in a tub contains substances A and B in the ratio of 7:5.

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For each hour of production, a certain factory requires 1 assembly line worker for every 25 units to be produced in that hour.

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A and B can do a work in 25 days and 10 days respectively.

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A 20 litre mixture of milk and water contains milk and water in the ratio 3 : 2. 10 litres of the mixture is removed and replaced with pure milk and the operation is repeated once more.

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A man buys a cycle for Rs. 1400 and sells it at a loss of 15%.

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A person buys an article at Rs.550.

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A shopkeeper sold 15 articles at the cost price of 20 articles.

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In order to obtain an income of Rs. 500 from 30% stock at Rs. 90, one must make an investment of

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