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Mr Yang’s son has a total of twenty-one $1 and $2 coins in his money box. When he counts his money, he finds that its total value is $30. How many coins of each type does he hav…

Mr Yang’s son has a total of twenty-one $1 and $2 coins in his money box. When he counts his money, he finds that its total value is $30. How many coins of each type does he hav…
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Mr Yang’s son has a total of twenty-one $1 and $2 coins in his money box. When he counts his money, he finds that its total value is $30. How many coins of each type does he have?

asked
User Anton Dementiev
by
8.2k points

1 Answer

3 votes
$2-9
$1-12
It is answer
answered
User Nurettin
by
7.6k points
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