If the radius of the base of a right circular cylinder is increased by 20% and the height is decreased by 30%, then what is the percentage increase/decrease in the volume?

The areas of three adjacent faces of a cuboidal tank are 3 m², 12 m² and 16 m². The capacity of the tank, in litres, is:

√6+√6+√6+… is equal to –

Direction: What value will come in place of the question mark (?) in the following question?

32, 50, 86, ?, 212, 302

If the 8 digit number 789x531y is divisible by 72, then the value of (5x - 3y) will be?

The ratio of two whole numbers is 5 : 7. Which of the following can be their sum?

The ratio of the monthly incomes of X and Y is 5: 4 and that of their monthly expenditures is 9: 7. If the income of Y is equal to the expenditure of X, then what is the ratio of the savings of X and Y?

An article is marked 35% above its cost. If a profit of 20% is earned by selling the article, then the discount per cent offered on the marked price of the article is: