Quantitative Aptitude - Arithmetic Ability Questions

If 3A = 2B = C, then A : B : C = ?

A right prism has a square base with side of base 4 cm and the height of prism is 9 cm. The prism is cut in three parts of equal heights by two planes parallel to its base. What is the ratio of the volume of the top, middle and the bottom part respectively?

Amit can complete a work in 25 days and Punit can complete the same work in 20 days. Punit alone worked at it for 10 days and then left the work. In how many days will Amit alone complete the remaining work?

A can paint a house in 25 days and B can do it in 10 days. Along with C, they did the job in 6.25 days only. Then in how many days, C alone can do the job?

In a class there were 28 boys and some girls. In a test the mean score obtained by the boys was 12.5 while that obtained by the girls was 14.5. If the overall average was 13.1, what was the total number of students in the class?

x, y and z are prime numbers and x + y + z = 38. What is the maximum value of x?

At what rate of compound interest per annum will a sum of Rs 20000 become Rs 23328 in 2 years?

When a number is increased by 216, it becomes 140% of itself. What is the number?