Quantitative Aptitude - Arithmetic Ability Questions

If sec -5π/4 = x, then the value of x is

On a certain principal if the simple interest for two years is Rs 1400 and compound interest for the two years is Rs 1449, what is the rate of Interest?

What is the difference (in Rs) in Compound interest earned in 1 year on a sum of Rs 25,000 at 20% per annum compounded semi-annually and annually?

What is the value of sin ­7π/4c?

When a discount of 25% is given on a box of popcorn, the profit is 25%. If the discount is 10%, then the profit is

How many three digit numbers are there in which all the digits are odd?

In a mixture of 25 litres, the ratio of milk to water is 4:1. Another 3 litres of water is added to the mixture. The ratio of milk to water in the new mixture is

In a container, two types of liquids P and Q are in the ratio of 3 : 7. If 10 litres mixture is drawn off from the container and filled with 6 litres of liquid Q,then the ratio of P and Q becomes 1 : 3. What was the original quantity (in litres) of mixture?