Quantitative Aptitude - Arithmetic Ability Questions

If Sinθ = √3/2 and 0°<θ<90°, then the value of tan(θ-15°) is

A car travels a certain distance at 34 km/h and comes back at 66 km/h. What is the average speed for total journey?

If 2x - 5y = 5 and 2x - y = 9, then x - y is ______.

If 2x- 3(4-2x) < 4x - 5 < 4x + 2x/3, then x can take which of the following values?

If a3 + 3a2 + 9a = 1, then what is the value of a3 + (3/a)?

In a triangle PQR, ∠Q = 90°. If PQ = 12 cm and QR = 5 cm, then what is the radius (in cm) of the circum circle of the triangle?

Vishal is 20 years younger to Arya. Twelve years hence Arya's age will be 1.25 times that of Vishal. Aryais now ......... years old.

Find the least number which must be subtracted from 18265 to make it a perfect square