Quantitative Aptitude - Arithmetic Ability Questions

If 5x + 1/x = 10, then x2 + 125x2 is equal to

A dishonest milkman buys milk at Rs 24 per litre and adds 1/3 of water to it and sells the mixture at Rs 32 per litre. What is his gain?

The sum of the present ages of two cousins is 46 years. Eight years ago, the elder one was twice as old as the younger one. What is the present age of the elder cousin?

Akash is 3 times as good a workman as Baldev and therefore is able to finish a job in 40 days less than Baldev. Working together, they can finish it in _____.

In the following question, select the odd letters from the given alternatives.

Of the 3 numbers whose average is 22, the first is 3/8th the sum of other 2. What is the first number?

What will be the acute angle between the hour-hand and the minute -hand at 2:13 p.m?

Determine the value of  'a' which satisfies the equation 9a + 40a = 41a