Quantitative Aptitude - Arithmetic Ability Questions

The internal bisectors of ∠Q and ∠R of triangle PQR meet at O. If ∠P = 70°, then what is the measure of ∠QOR (in degrees)?

Deksha borrowed Rs. 500 at 5% per annum S.I. What amount (in Rs.) will she pay to clear her debt after 4 years?

A and B undertake a piece of work for Rs. 250 . A alone can do that work in 5 days and B alone can do that work in 15 days . With the help of C, they finish the work in 3 days . If every one gets paid in proportion to work done by them, the amount C will get is 

Select the odd letters from the given alternatives.

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

Find the odd word/letters/number 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?