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Some ancient coins from Asia, Europe and Africa are on display in a museum. 1/5 of the coins are from Asia. 140 coins are from Europe. There are 20 more coins from Asia than Africa. How many ancient coins are on display altogether?

 Sep 9, 2021
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x=total

 

 

140 +  1/5 x   +  (1/5x -20)  = x             x = 200

 Sep 9, 2021

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