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Dmitrij [34]
3 years ago
14

Mary and her brother John

Mathematics
1 answer:
BabaBlast [244]3 years ago
5 0

let, x be the no of coins then according to question.Mary have 3x no of coins and John have x no of coins..

now, 3x+x=180

or,4x=180

or,x=180/4

therefore, x= 45

thus mary has 3×45=135 no of coins...

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