Quantitative Aptitude - Arithmetic Ability Questions

What sum will produce the same interest in 9 years at the rate 8% simple interest as Rs. 800 producein 3 years at 9/2% per annum?

One pipe can fill an empty cistern in 4 hours while another can drain the cistern when full in 10 hours. Both the pipes were turned on when the cistern was half-empty. How long will it take for the cistern to be full?

The least number that must be substracted from 63520 to make the result a perfect square is

If the sum of squares of two real numbers is 41 and their sum is 9. Then the sum of cubes of these two numbers is

The point equidistant from the sides of a triangle is called

If in a triangle ABC, Sin A = Cos B then the value of Cos C is

Weight of Ayush and Abhishek are in the ratio of 6:11. Abhishek's weight increases by 25% and total weight of Ayush and Abhishek both increases by 40%. If total weight becomes 119 kg, then wat is the weight (in kg) of Ayush after the increment?

What is the equation of the line passing through the point (2,-3) and making an angle of -45°with the positive X-axis?