A sum of Rs. 885 is made up of 124 coins which are either Rs.10 coins or Rs.5 coins. How many are there of each ?
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10rs coin=x
5rs coin=y
x+y=124
10x+5y=885
so x =53
y=71
5rs coin=y
x+y=124
10x+5y=885
so x =53
y=71
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