Question

B) The fourth and fifth terms of a different Fibonacci sequence

are respectively 37 and 60.
Work out the first term in this sequence

Answer 1

Answer: 9

Explanation:

Let the first term = a; the second term = b; and the 3rd term = c

Since one term in the sequence is the sum of the previous two terms,

60 = 37 + c

So c = 23.

We can repeat this process for b:

b + 23 = 37

b = 14.

Lastly, a:

a + 14 = 23

a = 9