Question

10. Nina receives a chain letter, which she copies and sends on to five friends. Each of them sends the letter to five more friends The cycle continues with each recipient sending then letter to five more friends. Which of the following represents the number of the number of people receiving letters on the fifth round? (Count Nina. sending the letters, as round one) a) 15.625 b) 3.125 c) 625 d) 225​

Answer 1

Answer:

(c) 625

Explanation:

first round = 1×5 = 5

second round = 5×5 = 25