Quantitative Aptitude - Arithmetic Ability Questions

In ΔPQR, ∠QPR = 45° and the bisectors of ∠PQR and ∠PRQ meets at O. What is the value (in degrees) of ∠QOR?

Three consecutive natural numbers are such that the square of the greatest is greater than the product of the other two by 19. The smallest of these numbers is

What is the slope of the line parallel to the line passing through the points (3 , -4) and (-2 , 5)?

Two trains are moving in the same direction at the speed of 23 km/hr and 77 km/hr. The time taken by faster train to cross a man sitting in the slower train is 40 seconds. What will be the length (in metres) of the faster train?

What is the value of Cot 45° + Cosec 60°?

If tanA = x, then x is

If the standard deviation of a population is 6.5, what would be the population variance?

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