Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd letters from the given alternatives.

If a = 73, b = 74 and c = 75, then what is the value of a3 + b3 + c3 – 3abc?

The value of (sec245 - cot245) - (sin230 + sin260) is

What is the difference (in Rs) between compound interest (compounded annually) and simple interest for 3 years on a principal of Rs 3000 at the annual rate of 20%?

The  sum  of  three  prime  numbers  is  100.  If  one  of  them  exceeds  another  by  36,  then  one  of  the numbers is

The reciprocals of the squares of the numbers 11⁄2 and 11⁄3 are in the ratio

In what ratio is the segment joining points (2, 3) and (-2, 1) divided by the Y-axis?

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