Question

The nth term of the Fibonacci series is defined as $T_n=T_{n-1}+T_{n-2}$. If the difference in that squares of sixth and fifth terms of a Fibonacci series is 221, what is its ${10}^{th}$ term?

• A. 81
• B. 123
• C. 147
• D. Cannot be determined

Answer 1

The correct option is D Cannot be determined

Option (D) is the correct answer. Check the video for the approach.