Ankita has to climb 5 stairs starting at the ground, while respecting the…
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Ankita has to climb 5 stairs starting at the ground, while respecting the following rules:
1. At any stage, Ankita can move either one or two stairs up.
2. At any stage, Ankita cannot move to a lower step.
Let F(N) denote the number of possible ways in which Ankita can reach the Nth stair. For example, F(1) = 1, F(2) = 2, F(3) = 3.
The value of F(5) is _______.
- A.
8
- B.
7
- C.
6
- D.
5
Attempted by 4 students.
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