Quantitative Aptitude - Arithmetic Ability Questions

What is the value of sin (–π/3) + cos(–π/6)?

The average of three numbers is 6. The average of the first two is 5 while the average of the last two is 8. The three numbers are:

Find the sum of the measures all the exterior angles of a decagon.

What is the value of Cot 60°- Cos 45°?

A cylinder of radius 4.5 cm and height 12 cm just fits in another cylinder completely with their axis perpendicular. What is the radius (in cm) of second cylinder?

Simple interest on a sum of Rs 67400 for 14 months is Rs 4718. What is the rate (in percentage) of interest per annum?

M borrowed some money for 1 year at certain simple interest. But the interest rate was increased to 2% which amounted to Rs.120. Find the principal amount.

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