Quantitative Aptitude - Arithmetic Ability Questions

In the given figure, ABCD is a square of side 14 cm. E and F are mid points of sides AB and DC respectively. EPF is a semicircle whose diameter is EF. LMNO is a square . What is the area (in sq.cm) of the shaded region?

If 2cosAsinB = x, then the value of x is?

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

If the perimeter of a semicircle is 36 cm, then find its area (in cm2).

If the selling price of an article is doubled, then its loss percentage gets converted into the equal profit percentage. What is the loss percentage?

The value of cos220° + cos270°is

The cube of 997 is

A car travels a certain distance at 32 km/h and comes back at 68 km/h. What is the average speed for total journey?