Quantitative Aptitude - Arithmetic Ability Questions

39 is 5.2% of?

What is the angle between the two hands of a clock when the time shown by the clock is 8 p.m.?(in degrees)

Find the unit place digit in 71 x 72 x 73 x 74 x 76 x 77 x 78 x 79.

A racing car going at an average speed of 108 km/hr takes 15 minutes to complete a lap on a racing track. By how much should it increase its speed (inkm/hr) to complete the lap in 12 minutes?

If the simple interest on Rs. 400 for 10 years is Rs. 280, then rate of interest per annum is

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

If 10x/3 + 5/2(2 - x/3) = 7/2, then the value of x is?

What is the value of (1/√2) Cot 45° + (1/√3) Cosec 60°?