Posted by carol on Thursday, November 10, 2011 at 9:13pm.
Web Results For:The ratio of john's money to Peter's money was 4:7 at first. After john spent 1/2 of his money and Peter spent $60. Peter had twice as much money as john. How much money did john have at first?

math  Reiny, Thursday, November 10, 2011 at 9:49pm
let amount of John's money be 4x
let amount of Peters money be 7x
after transaction, John has 2x
Peter has 7x60
7x60 = 2(2x)
3x = 60
x = 20
John at first had $80 and Peter had $140
check:
John spent half his money , so he has $40 left
Peter spent $60, so he has $80 left
Does Peter have twice as much as John? YES!
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