Quantitative Aptitude - Arithmetic Ability Questions

The shadow of a tower when the angle of elevation of the sun is 45°, is found to be 10 m longer than when it was 60° . The height of the tower is

If two complementary angles are in the ratio of 2:3, find the ratio of square of smaller angle to square of greater angle.

If secA/(secA ­- 1) + secA/(secA + 1) = x, then x is

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

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

Find out the odd word/letters/number/number pair from the given alternatives.

U, V and W together can make a chair in 20 minutes. U and V together can make it in 25 minutes. How much time will (in minutes) W alone take to make the chair?

cos(A+B) + cos(A-B) is equal to