Quantitative Aptitude - Arithmetic Ability Questions

2sin[(C+D)/2].cos[(C­-D)/2] is equal to

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

If -3[1-(x/2)] + 5x/3 = 1/6, then what is the value of x?

If 7x + 2 ≥ x - 2 and 7 + 2x ≥ 3 + 3x; then x can take which of the following values?

If ΔABC is an equilateral triangle of side 16 cm, then the length of altitude is

Calculate the distance (in cm) of the chord from the centre of the circle, if the chord of length 48 cm is drawn in the circle of radius 25 cm.

The simple interest on a certain sum of money invested at a certain rate for 2 years amounts to Rs. 1200. The compound interest on the same sum of money invested at the same rate of interest for 2 years amounts to Rs. 1290. What was the principal?

In the given figure, P  is the center of the circle. If QS = PR, then what is the ratio of angles RSP to the TPR ?