Quantitative Aptitude - Arithmetic Ability Questions

What is the value of sec -2π/3 ?

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

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

If tan π/3c + cosec π/6c = x, then x is

A piece of wire 132 cm long is bent successively in the shape of an equilateral triangle, a square and a circle. Then area will be longest in shape of

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

If x+1x = 2, then x2+1x2 = ?

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