Quantitative Aptitude - Arithmetic Ability Questions

The sum of squares of three positive integers is 323. If the sum of squares of two numbers is twice the third, their product is

A can paint a house in 42 days and B can do it in 21 days. Along with C, they can finish the job in 7 days only.C alone can do the painting job in how many days, ?

The ratio of the present ages of Reena and her husband is 4 : 5. 8 years from now, ages of her husband and her son will be in the ratio 24 : 9. If the present age of Reena is 32 years, then what will be her son’s present age (in years)?

If the diameter of a hemisphere is 21 cm, then what is the volume (in cub.cm) of hemisphere?

A certain number of men agreed to do a work in 20 days. 5 men did not come for work. Others completed the work in 40 days. Find the number of men who had agreed to do the work originally.

Find the odd word/letters/number pair from the given alternatives.

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

For what value of X, 211X will be a perfect square?