Please help us figure out the math word problem below.

Question

Sales in the printing business have doubled for James in each of the last three months. During the last month, he made a profit of $520. If the pattern continues, what will be his three month total profit at the end of the next three months?

Answer 1

p = profit in first month

2p = profit in second month

4p = profit in third month

 

4p = 520

p = 105

 

For the next three months

total profit = 8p + 16p + 32p (profits doubles each time!)

total profit = 56p

total profit = 5880

 

For the second three months the total profit is $5,880.