Quantitative Aptitude - Arithmetic Ability Questions

A can do a work in 12 days while B can do it in 15 days. They undertake to complete it together for Rs. 450. what will be the share of A in this amount of money ?

If x + y = 12 and x2 + y2 = 94, then xy is 

If A, B and C are denoting Mean, Median and Mode of a data and A : B = 9 : 8. Then the ratio of B : C is

If a - b = 2 and ab = 15, then what is the value of a3- b3?

If Tan θ = 4/3, then what is the value of Sin θ?

If a(x + y) = b(x - y) = 2ab, then the value of 2(x2 + y2)

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

Diameter of a car wheel is 21 cm. A car driver moving at the speed of 66 km/hr takes 36 seconds to reach a destination. How many revolutions will the wheel make during the journey?