Question

A boy has denomination of 10 clients. 20 clients and $1 coins in the ratio 10:17:7 respectively in his piggy bank. on counting it was found the total amount was $57. how many coins of denomination 20 clients were there in the piggy bank? (A)95. (B) 100. (C) 114. (D) 85.​

Answer 1

A boy has denomination of 10 clients. 20 clients and $1 coins in the ratio 10:17:7 respectively in his piggy bank. on counting it was found the total amount was $57. how many coins of denomination 20 clients were there in the piggy bank?

ANS- (B) 100

Answer 2

Answer:

85 coins

Step-by-step 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