Asked by Ico

Cheryl and Sally have some money in their wallets.If Cheryl puts 80 cents into her wallet, she will have 80% as much money as Sally.If instead,Sally puts 70 cents into her wallet, she will have 50% more money than Cheryl.How much money does each of them have.
Answered by Reiny
Not clear if the new monies are transferred from the other person's wallet, or if they are new monies.
e.g. Do the 80 cents that Cheryl puts in her wallet come from Sally?
Please clarify.
Answered by Steve
If they start with amounts c and s (in cents), then we are told

c+80 = 0.80s
s+70 = 1.50c

now just solve for c and s.

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