Question

In how many ways coin of 1 rupee and 2 rupee is arranged to get a value of 100 rupee? (Example for 5 rupee we can arrange it in 3 ways {(1,1,1,1,1) (1,1,1,2)(1,2,2)}

Answer 1

25 times 2 ₹ coins and 50 times 1 ₹ coins

(2,2,2,2,2,2..........1,1,1,1,1,1,1)