Quantitative Aptitude - Arithmetic Ability Questions

If y=2secθ and x=3tanθ then x29-y24 is

The average weight of P, Q and R is 71 kg. If the average weight of P and Q be 66 kg and that of Q and R be 76.5 kg, then the weight (in kg) of Q is.

Coefficient of x2 in (x + 7)(5 - 3x)(3x - 6) is

Find the value of 491321973

What is the simplest form of (1 + cosA)(cosecA ­ cotA)?

A ladder 13 m long reaches a window which is 12 m above the ground on side of a street. Keeping its foot at the same point, the ladder is turned to the other side of the street to each a window 5m high, then the width of the street is :

Which among the following is a mismatched pair of religion practiced and its holy book?

Rs 9000 is divided among P, Q and R in the ratio of 5 : 6 : 7. What is the share (in Rs) of R?