Quantitative Aptitude - Arithmetic Ability Questions

What least number must be added to 4131, so that the sum is completely divisible by 19?

How many natural numbers between 15 and 85 are divisible by 7?

A can do a work in 15 days and B in 20 days. If they work on it together for 6 days, then what fraction of work is left?

Atul and Binay together complete a piece of work in 5 days. If Binay alone can complete the same work in 8 days, how many days Atul take to complete the same work alone?

What will be the average of all the prime numbers before 19?

If the volume of a cylinder is 385 cubic cm and height is 10 cm, find its radius?

If √x ­- √y = 1 , √x + √y = 17 then √xy = ?

Factorise x2 + 3x -­ 18