A sum of ₹885 is made up of 124 coins which are either ₹10 coins or ₹5 coins. How many are there of each.
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Answer:
Total no of coins=124
sum of the values of coins=Rs.885
Let the no of Rs.10 coins be x
The number of Rs.5 coins=124-x
The value of Rs.10 coins=Rs.(10(x))
The value of Rs.5 coins=Rs.(5(124-x))
∴According to conditions
5(124-x)+10(x)=885
620-5x+10x=885
5x=885-620
5x=265
x=265/5
x=53
no of Rs.10 coins =x=53 coins
no of Rs.5 coins=124-x=124-53=71 coins
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