Quantitative Aptitude - Arithmetic Ability Questions

If x = (√5) + 1 and y = (√5) – 1, then what is the value of (x2/y2) + (y2/x2) + 4[(x/y) + (y/x)] + 6?

If a -­ b = 3 and ab =28, then a3 - b3 is

Calculate the angle subtended by the chord at the point on the major arc if the radius and the chord of the circle are equal in length.

What will be the average of the first 5 positive even numbers divisible by 9?

The third proportional of two numbers 4 and 28 is _______.

The compound interest earned in two years at 15% per annum is Rs 20640. What is the sum invested (in Rs)?

Δ LMN is right angled at M. If m∠N = 45°, what is the length of MN (in cm), if NL = 9√2 cm?

Choose the one which is odd from the following options.