Quantitative Aptitude - Arithmetic Ability Questions

Find the odd word/letters/number pair from the given alternatives

If x + 1x = 3, then x18 + x12 + x6 + 1 value is

A balloon leaves from a point P rises at a uniform speed. After 6 minutes, an observer situated at a distance of 450√3 metres from point P observes that angle of elevation of the balloon is 60 deg. Assume that point of observation and point P are on the same level. What is the speed (in m/s) of the balloon?

Select the odd word/letters/number/number pair from the given alternatives.

The value of 2.31 x 0.34 = ?

Find the 4th proportional to 9, 17 and 27.

If 1 dupatta is offered free on purchase of 4 dupattas priced Rs 1300 each what is the effective discount on each dupatta?

Coefficient of x in (x + 9)(8 - 5x) is