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作者: 晴天 |
all three pays 300..
but the boss only takes $250
so three of them paid $250
$250/3 = $ 83.3 repeating (what each of them paid)
waiter took $20
and the three ppl got $30 back (so $10 each)
so
each paid $83.3 repeating + $10 = $93.3 repeating
$93.3 repeating x 3 people + $20 that the waiter took = $300
the logic in the ques was just misleading..
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This one is exactly the right question !!!