Quantitative Aptitude - Arithmetic Ability Questions

The HCF of 36,54 and 108 is

Pipes A and C can fill an empty cistern in 32 and 48 hrs, respectively while Pipe B can drain the filled cistern in 24hrs. If the three pipes are turned on together when the cistern is empty, how many hrs will it take for the cistern to be 2/3 full?

The square root of 5776 is

The volume of a hemisphere is 19404 cm3. Find its diameter (in cm).

Calculate the sum of squares from 1 to 9.

In ΔABC measure of angle B is 90°. If cosecA = 13/12, and AB = 10cm, then what is the length (in cm) of side AC?

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

If the standard deviation of a population is 4.5, what would be the population variance?