Question

Marcus thinks of a number between 5 and 10 He multiplies the number by 4 and adds 20.He takes this answer, multiplies it by 4 and adds 20 .He repeats this process a number of times and gets 868 What number did he begin with?

Answer 1

Answer:

he started with the number 7

Answer 2

Answer:

7

Step-by-step explanation:

7   ×   4   +   20   ×   4   +   20 = 212

212 x 4 + 20 = 868