Quantitative Aptitude - Arithmetic Ability Questions

Mr. Devesh borrowed Rs.4,500 at 4% per annum compound interest. The compound interest compounded annually for 2years is

The length of the diagonal and the breadth of a rectangle are 17 cm and 8 cm respectively. Find its perimeter (in cm).

If 7 spiders make 7 webs in 7 days , then 1 spider will make 1 web in how many days ?

Average age of 6 boys is 14 years. Average age of 11 girls is 12 years. What is the average age (in years) of all boys and girls?

Neeraj's earning was decreased by 60% and after that subsequently increased by 60%. Find the final loss % on his earnings?

On selling 120 bottles, Vijay earns profit equal to the cost price of 10 bottles. What is the profit percentage?

If A alone can do a job in 40 days then, in how many days can B alone do the job if together they can do the job in 8 days?

A certain number of men agreed to do a work in 20 days. 5 men did not come for work. Others completed the work in 40 days. Find the number of men who had agreed to do the work originally.