james has one 10p coin one 50p coin and some 20p coins. Altogether he has 2.00 . how many 20p coins does he have
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Answer:
Let the number of 20p coins be x
Then, 10p+50p+20p×x=Rs2
=60p+20p×x=2×100p
=20p×x=200p-60p
=x=140p/20p
=x=7
Thus, James has seven 20p coins
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