Question

a boy has coins in denomination of rs 1 and rs 2. he has total 30 coins and the value of coins is rs 48 find the no of coins he has?​

Answer 1

Step-by-step explanation:

Ratio of the coins : 1:2:3

Let no. of 50 paise coins =x

Value of 50 paise coins =

2

x

=Rs.

2

x

No. of 25 paise coins =2x

Value of 25 paise coins =

4

2x

=Rs.

2

x

No. of 10 paise coins =3x

Value of 10 paise coins =

10

3x

=Rs.

10

3x

Total value of the coins = Rs.6.50

(

2

x

)+(

2

x

)+(

10

3x

)=6.50

⇒

10

(5x+5x+3x)

=6.50

⇒13x=65

⇒x=5

Then no. of 10 paise coins =3x=3×5=15