Quantitative Aptitude - Arithmetic Ability Questions

What is the measure of central angle of the arc whose length is 11 cm and radius of the circle is 14 cm?

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

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.

A man sells an article at 15% profit. If he had sold it for . 6 more, he would have gained 18%. The man bought the article for

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 is the ratio of simple interest earned on certain amount at the rate of 12% p.a. for 9 years and that for 12 years?

A dishonest milkman buys milk at Rs 30 per litre and adds 1/5 of water to it and sells the mixture at Rs 32 per litre. What will be his gain?

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