Quantitative Aptitude - Arithmetic Ability Questions

What is the diameter (in cm) of a sphere of surface area 154 sq cm?

A right circular cylinder is partially filled with water. Two iron spherical balls are completely immersed in the water so that the height of the water in the cylinder rises by 4 cm. If the radius of one ball is half of the other and the diameter of the cylinder is 18 cm, then the radii of the spherical balls are

Simple interest on a sum of Rs 3300 for 5 years is Rs 1980. What is the annual rate (in percentage) of interest?

Alarms from 3 different clocks sound after every 2, 4 and 6 hours, respectively. If the clocks are startedat the same 6 time, how many times do the alarms ring together in 3 days?

The diagonals do not form at least two congruent triangles in a _____.

If in ΔABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is

Compute : 4082 / 157 - 23

Divide Rs.221 in the ratio 1:3:6:7. The rupees in the respective ratios are