SOLUTION: ian spent 3/5 of his money on a book and 1/4 of the remainder on a pen.If a book cost 350 more than the pen how much money did he have at first.?

Question 818718: ian spent 3/5 of his money on a book and 1/4 of the remainder on a pen.If a book cost 350 more than the pen how much money did he have at first.?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
b = (3/5)M
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r = M - b
r = M - (3/5)M
r = (5/5)M - (3/5)M
r = (2/5)M
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p = (1/4)r
p = (1/4)(2/5)M
p = (1/10)M
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b = p + 350
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b = p + 350
(3/5)M = (1/4)r + 350
(3/5)M = (1/10)M + 350
(6/10)M - (1/10)M = 350
(5/10)M = 350
(1/2)M = 350
M = 700
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answer: he had 700
NOTE:
money units are not given in the problem statement.
money units can be anything such as dollar, euro, peso, etc.
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