Computer Science, asked by supriyainduri, 5 months ago

a
A boy has denominations of ten cents, twenty cents and one dollar coins in the ratio 10:177
respectively in his piggy bank. On counting it was found that the total amount was $57. How many
coins of denomination 20 cents were there in the piggy bank?

Answers

Answered by ROCKYCEO
3

Answer:

Explanation:

Let's say, no. Of coins of 10 cents=x

No. Of coins of 20 cents =1.7x

No.if coins of one dollar =0.7x

One dollar is equal to 100 cents i.e., 10 cents =0.1 dollar

0.1*x+0.2*1.7x+1*0.7x= $57

1.14*x=57

X=50

No.of coins of 20 cents = 1.7*x

=1.7*50

=85

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