Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd letter/letters from the given alternatives.

What is the equation of the line which has 3/2 and -­4/7 as x and y intercept respectively?

Simplify 81x2 - 49y29x + 7y

Geetha weighs 11.235 kg. Her sister weighs 1.4 times her weight. Find their combined weight?

In triangle ABC, ∠ABC = 90°. BP is drawn perpendicular to AC. If ∠BAP = 30°, then what is the value (in degrees) of ∠PBC?

O is the centre of a circle and AB is the tangent to it touching at B . If OB = 3 cm. and OA = 5 cm , then the measure of AB in cm

Two trains are moving in the same direction at the speed of 35 km/hr and 71km/hr. The time taken by faster train to cross a man sitting in the slower train is 48 seconds. What will be the length (in metres) of the faster train?

Find the value of '?, if the mean of the data set 18, 16, 22, 13, ? = 16.