Quantitative Aptitude - Arithmetic Ability Questions

If the Arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x 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

A person bought an item for Rs. 1500 and sold it at a profit of 12%. What was the selling price of the item?

Vikash purchased 5 bananas for Rs.4 and sold 4 bananas for Rs.5. Calculate his % profit?

If in 2 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs 7000 in 3 years at the same rate?

A thief is stopped by a policeman from a distance of 200 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed
of the thief as 8 km/hr and that of police man as 10 km/hr. How far the thief would have run, before he is over ­taken?

The initial ratio of sugar to flour in a dough was 2 : 7. To 9 kg of the dough John added more sugar to make the sugar to flour ratio 2 : 5. How much sugar did John later add?

Which of the following will yield a recurring decimal?