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23 March, 10:45

Ken spent 1/5 of his allowance on a movie, 3/8 on snacks, and 2/7 on games. If his allowance was $20, how much did Ken have left?

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  1. 23 March, 10:49
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    1/5 of 20 is $4. So, 20-4=$16 remaining.

    3/8 of 16 is $7.50. So, 16-7.50 = $8.50 remaining.

    2/7 of 8.5 is $2.43. So, 8.50-2.43 is $6.07

    Answer: Ken has $6.07 left after all his purchases.
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