ok so this is driving me crazy!

@femcsw2 (225)
United States
April 21, 2008 6:59pm CST
My nine year old son has a math word problem that is driving me absolutely nuts, can anybody help?? He needs 9 different ways to spend eighty five dollars using the numbers 5,10,15,20,25,30,35,40. You have to use each number once. He has figured out all but one. You have to pick one from each group listed below 10, 15, 25 10, 20,35 5,10, 15 20,30,40 Call me crazy but I need to know the answer!
2 responses
Trace86
@Trace86 (5030)
• United States
22 Apr 08
The only one I can see that adds up correctly is 35+10+40=85. Can you tell us the other combinations he already has? That might help to understand the problem more clearly.
ayumitakashi
@ayumitakashi (4462)
• United States
22 Apr 08
Wait so you have to pick from 5, 10, 15, 20, 25, 30, 35, and 40. Can you tell me the eight ways that he already found?