Quantitative Aptitude - Arithmetic Ability Questions

If 4(x + 5) -­ 3 > 6 -­ 4x ≥ x -­ 5; then the value of x is

The average of 7 numbers is 30. If the average of first three numbers is 25 and that of last three numbers is 35, then what is the fourth number?

If y=2-x1+x, then what is the value of 1y+1 + 2y+1y2-1 ?

A train of length, 245 metres, takes 20 seconds to cross a 355 metres long bridge. How much time (in seconds) will the train take to cross a 390 metres long platform?

Qamar gained 16% on the resale of a used stereo. If he purchased the item for Rs. 1500, how much did he sell it for?

A Lawn roller makes 20 revolutions in one hour. The radius it runs through 25 minutes is

A bus is running at a speed of 90 kmph. What distance will it cover in 20 seconds?

If PQ and PR be the two tangents to a circle with centre O such that ∠QPR = 120° then ∠POQ is