Quantitative Aptitude - Arithmetic Ability Questions

The average of runs scored by a cricketer in his 99 innings is 99. How many runs will he have to score in his 100th innings so that his average of runs in 100 innings may be 100?

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be:

X is 25% more efficient than Y. If Y alone can make a chair in 10 days, then X alone can make the chair in how many days?

A and B together can do a piece of work in 10 days. If A can do the work in 15 days, find in how many days that B alone can do the same work. Given below are the steps involved in solving the above problem. Arrange them in sequential order.

A) One day's work of B is 1/10 - 1/15

B) One day's work of A and B is 1/10 and One day's work of A is 1/15

C) B alone can do the work in 30 days

D) One day's work of B is 1/30

The percentage change of a number when it is first decreased by 10% and then increased by 10% is

Which of the following quadratic equations has real roots?

What is the value of cosecA/√(cosec2A ­- 1)?

In a test, Charan secured 54 marks that was also equivalent to obtaining 72% marks. How many marks was the test out of?