Quantitative Aptitude - Arithmetic Ability Questions

If 9x = 24311, then what is the value of x?

If 51.97 ­ (81.18 -­ x ) ­- 59.39 = 5.268, then value of x will be

Which of the following quadratic equations has real roots?

A 600 metres long train is running at the speed of 81 km/hr. If it crosses a platform in 40 seconds, then what is the length of the platform (in metres)?

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)?

If in ΔABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is

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

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