Quantitative Aptitude - Arithmetic Ability Questions

If 10 people can do a job in 20 days,then 20 people with twice the efficiency can do the same job in

Deepanshu lent Rs. 8400 to Jaipal for 15 years and Rs. 5100 to Kareem for 14 years on simple interest at the same rate of interest and received Rs. 17766 in all from both of them as interest. The rate of interest per annum is

The sum of all prime numbers between 58 and 68 is

Find the curved surface area (in cm²) of a hemisphere of diameter 28 cm

Find the radius of the circle if the area of its sector is 30.8 sq cm whose corresponding central angle is 72°?

A watch having marked price as Rs 8400 is sold for Rs 5040 after two successive discounts. If the first discount is 25% then what is the second discount percentage?

Two successive discounts of 10% and 25% are given by Raman on a shirt. If the marked price of the shirt is Rs 600, then what is the value (in Rs) of discount?

A sum of Rs 4000 becomes Rs 6000 in 1 year at a certain rate of compound interest. What will be the sum (in Rs) after 4 years?