Quantitative Aptitude - Arithmetic Ability Questions

There are 8 equidistant points A, B, C, D, E, F, G and H (in same order) on a circle. What is the value of ∠FDH (in degrees)?

Excluding stoppages, the speed of a bus is 72 kmph and including stoppages, it is 60 kmph. For how many minutes does the bus stop per hour?

The first and last terms of an arithmetic progression are 32 and ­-43. If the sum of the series is ­-88, then it has how many terms?

The area of a circle is 346.5 cm2. Find its circumference (in cm).

What is the length of the arc whose central angle is 30° and radius of the circle is 21 cm?

∆PQR is right angled at Q. If m∠R = 45°, then find the value of (cosecP - √3/2)

If x2+1x2 = 2, then the value of x - 1x is

If p/q = r/s = t/u = √5, then what is the value of [(3p2 + 4r2 + 5t2)/(3q2 + 4s2 + 5u2)]?