Question

If the first three Fibonacci numbers are given as x, = 1, X2 = 1 and x3 = 2,

what is the value of n for which X, + Xn+1 = 55?

Answer 1

n=8

Explanation:

Answer 2

x8 = 21 and x9 = 34

Explanation:

The Fibonacci numbers are

1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89,...