Quantitative Aptitude - Arithmetic Ability Questions

The ratio of the ages of two boys is 3:4. After 3 years, the ratio will be 4:5.The ratio of their ages after 21 years will be

When a discount of 20% is given on a jacket, the profit is 28%. If the discount is 13%, then the profit is

What is the average of first 7 multiples of 7?

In how many different ways could couples be picked from 6 men and 9 women ?

If the cost price of 48 articles is equal to the selling price of 32 articles, then what is the profit percentage?

A shopkeeper wants to earn 33% profit on an article after offering 30% discount. By how much percentage more he should mark the price of his article above cost price?

In the given figure, 3 semicircles are drawn on three sides of triangle ABC. Ab = 21 cm, BC = 28 cm and AC = 35 cm. What is the area (in sq.cm) of the shaded part?

P can complete a work in 15 days and Q in 24 days. They began the work together, but Q left the work 2 days before its completion. In how manydays, was the work completed?