Quantitative Aptitude - Arithmetic Ability Questions

How many numbers are there from 2000 to 7000 which are both perfect squares and perfect cubes?

The simple interest accrued on a sum of money at the end of four years is 1/5th of its principal. What is the rate of interest per annum?

What smallest number should be added to 2401 so that the sum is completely divisible by 14 ?

A, B and C can do a job working alone in 50, 75 and 20 days respectively. They all work together for 4 days, then C quits. How many days will A and B take to finish the rest of the job?

If the radius of a circle is increased by 15% its area increases by _____.

If 23x + 23y = 184, then what is the average of x and y?

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

A can finish a work in 7 days . B can finish the same work in 9 days . The days required to finish the work by both of them together.