Quantitative Aptitude - Arithmetic Ability Questions

The value of 1/64 is equal to square of

The diagonals of two squares are in the ratio 5:2.The ratio of their area is

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

There are a total of 200 students in a school, of which 7/10th are boys. Find the number of girls in the school.

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

A car travels a certain distance at 34 km/h and comes back at 66 km/h. What is the average speed for total journey?

By increasing the price of entry ticket to a fair in the ratio 17:19, the number of visitors to the fair has decreased in the ratio 11:10. In what ratio has the total collection increased or decreased?

The prices of chairs and tables are in the ratio of 9 : 5. If the chairs cost Rs. 4200 more than the tables, find the price of the tables? (in Rs.)