Progressions Pa...

If x, 1, z are in AP and x, 2, z are in GP, then x, 4, z are in

If a, b, c are in AP and b - a, c - b, a are in GP, then a : b : c is 

If a, b, c and d are in GP, then aⁿ + bⁿ, bⁿ + cⁿ and cⁿ + dⁿ are in

If arithmetic mean of two positive numbers is A, their geometric mean is G and harmonic mean is H, then H is equal to

The product of terms equidistant from the beginning and end in a GP (finite) is equal to

The next term of the sequence 1, 5, 14, 30, 55, ____ is

If p, q, r, s, t are in GP, then t/r equals to

The value of 2. is

The arithmetic mean and geometric mean of two numbers are 10 and 8, respectively. Find the numbers.

The sequence 1, 1, 1, ____ is in

If a, b, c, d are in GP, then (a - c)² + (b - c)² + (b - d)² =

If (a, b, c) are in GP, then log aⁿ, log bⁿ, log cⁿ are in

The sum of all terms of a GP is 5 times the sum of odd terms. The common ratio of the GP is

If the 5^th term of a GP is 2, then the product of first 9 terms is

Which of the following is a GP?

The 5^th, 8^th and 11^th terms of a GP are p, q and s respectively. Then

Directions: In the following number series, one term is missing. Identify the missing term out of the given four options.

3, 7, 15, 31, 63, ______.

What will be the area of the 6^th circle if the radius keeps on decreasing as shown in the following diagram?

If x, y, z are in AP as well as in GP, then