Quantitative Aptitude - Arithmetic Ability Questions

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

Find two numbers whose sum is 29 and the product is 100.

If 31% of an electricity bill is deducted, Rs 1794 is still to be paid. How much was the original bill amount?

The angle of elevation of the top of a tower from a point A on the ground is 30°. On moving a distance of 20 metres towards the foot of the tower to a point B, the angle of elevation increases to 60°. The height of the tower in meters is

If a - b = 2 and ab = 15, then what is the value of a3- b3?

The curved surface area and the slant height of a right circular cone are 99 sq.cm and 9 cm respectively. Find its diameter (in cm)

The value of sinθ1+cosθ + sinθ1-cosθ

Three numbers are in the ratio of 3:5:10 and their LCM is 630. Find their HCF.