Self Maths Puzzle Numerical Ability Sequence and Series

please give formula for sum of any fibonacci series??

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Self Other Question

Given a Fibonacci function

f1=1;f2=1

fn=f(n-1)+f(n-2) which of the following is t is true?

1. Every Second element is even

2. Every third element is odd

3. The series increases monotonally

4. For n>2, fn=ceiling(1.6 * f(n-1))

5. None if DAYS + TWO = SHORT
then S+H+O+R+T=?