Quantitative Aptitude - Arithmetic Ability Questions

In triangle PQR, the sides PQ and PR are produced to A and B respectively. The bisectors of ∠AQR and ∠BRQ intersect at point O. If ∠QOR = 50°, then what is the value (in degrees) of ∠QPR?

Find the total surface area (in cm2 ) of a hemisphere of diameter 42 cm.

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

Select the odd letters from the given alternatives.

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

Which of the following quadratic equations has real roots?

Expand and simplify (x + 4)2 + (x -­ 2)2

If secA/√(sec2A ­- 1) = x, then value of x is