human
John had $20. He spent 1/5 of his money on snacks and 3/4 of the remaining money on necessities. How much is left of John's money?
assistant
How much did John spend on snacks? ** John spent $20 x 1/5 = $<<20*1/5=4>>4 on snacks.
How much money did John have left? ** He had $20 - $4 = $<<20-4=16>>16 remaining.
How much did John spend on necessities? ** He spent $16 x 3/4 = $<<16*3/4=12>>12 on his necessities.
How much is left of John's money? ** So, John is left with $16 - $12 = $<<16-12=4>>4.
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