Quantitative Aptitude - Arithmetic Ability Questions

A shopkeeper by selling 20 Timex watches, earns a profit equal to the selling price of 4 Timex watches. His profit percentage is

A mixture is composed of 11 parts of pure milk and 2 parts of water. If 35 litres of water were added to the mixture then the new mixture will contain twice as much pure milk as water, then how many litres of pure milk does the original mixture contain?

3 men or 4 women can complete a job in 120 days. 12 men and 16 women will complete the same job in how many days?

The cost price of 25 books is equal to the selling price of 20 books. The profit percent is

What is the value of sin (630 + A) + cos A?

If cosecA + cotA = x, then value of x is

What is the average of first 7 multiples of 7?

If in 3 years at simple interest the principal increases by 15%. What will be the approximate compound interest earned (in Rs lakhs) on Rs 15 lakhs in 3 years at the same rate?