Question

Alex has a job delivering newspapers. He puts 20% of his earnings each week into his college savings account. Each week he puts $16 into the account. How much does he spend?

Answer 1

$64

Alex spends whatever he doesn't put into the account, which is 100%-20% = 80%. This is 4x what he saves, 20% (80/20 = 4). This means you can multiply the amount he saved ($16) by 4 to get $64

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