Quantitative Aptitude - Arithmetic Ability Questions

What is the value of [(sin x + sin y) (sin x – sin y)]/[(cosx + cosy) (cosy – cosx)]?

If √20 + √125 = 15.65, then what is the value of √45 + √5?

Mr. Ibrahim borrowed Rs. 7500 at 5% per annum compound interest. The compound interest compounded annually for 2 years is

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

What is the value of {[sin (x + y) – 2 sin x + sin (x – y)]/[cos (x – y) + cos (x + y) – 2 cos x]} × [(sin 10x – sin 8x)/(cos 10x + cos 8x)]?

What is the quotient when 7251 is divided by 66?

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 49π sq cm?

PT is a tangent to a circle with centre O and radius 6 cm . If PT is 8 cm then length of OP is