Quantitative Aptitude - Arithmetic Ability Questions

What is the area (in sq cm) of a rhombus if the lengths of its diagonals are 25 cm and 20 cm?

Ramu can row 9 kmph in still water. It takes him twice as long to row up as to row down. Find the rate of stream.

If 2x + 3(5-2x) > 2 - 3x < 2x - x/3, then x can take which of the following values?

What is the value of sin (B – C) cos (A – D) + sin (A – B) cos (C – D) + sin (C – A) cos (B – D)?

In ΔXYZ measure of angle Y is 90 deg. If cot X = 5/12, and XY = 2.5 cm, then what is the length (in cm) of side XZ?

The rate of working of A and B are in the ratio of 2:3. The number of days taken by them to finish the work is in the ratio:

What is the measure of an interior angle of a regular Octagon?

When 0.151515.....is converted into a fraction, then the result is