Quantitative Aptitude - Arithmetic Ability Questions

Analyze the figure shown below in which DE || BC and the other dimensions are as follows: AD=3 cm, BD=4 cm, AE=4.4 cm and DE=6 cm. Calculate the length (in cm) of BC.

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

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

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

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?

The number of sides of a regular polygon whose exterior angles are each 72 deg is

The mean of the data 2, 9, 9, 3, 6, 9, 4 is

A bank offers 15% compound interest per half year. A customer deposits Rs 7200 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by means of interest is