Quantitative Aptitude - Arithmetic Ability Questions

A batsman in his 12th innings makes a score of 120, and thereby increase his average by 5. The average score after 12th innings is

The surface areas of three faces of a cuboid sharing a vertex are 20, 32 and 40 sq. mts. What is the volume of the cuboid in cub. m?

Present age of A is 2 times the present age of B. After 8 years the B's age will be 4 times of C's present age. If C celebrated his fifth birthday 9 years
ago, then what is the present age (in years) of A?

2*[­0.3(1.3 + 3.7)] of 0.8 = ?

Select the odd word/letters/number/number pair from the given alternatives.

In new government policy, the price of onion is raised by 35%. By what % should a person reduce onion consumption so that the expenditure on it does not increase?

If a sum of money deposited in a bank at simple interest is doubled in 6 years, then after 12 years, the amount will be

Let O be the orthocentre of the triangle ABC. If ∠BOC = 150°, Then ∠BAC is