plz answer 12 question
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plz mark as brainlist
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2rs coin = 2x
5rs coin=5x
cost of 2rs coin=2x×2=4x
cost of 5rs coins=5x×5=25x
total amount=84
4x+25x=84
29x=84
x=84/29
2x+5x=36
7x=36
x=36/7
5rs coins=25
5rs coin=5x
cost of 2rs coin=2x×2=4x
cost of 5rs coins=5x×5=25x
total amount=84
4x+25x=84
29x=84
x=84/29
2x+5x=36
7x=36
x=36/7
5rs coins=25
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