Question

In a bag the number of one rupee coins is three times the number of two rupees coins .if the worth of the coins is 120 find the number of 1 rupee coins

Answer 1

Let the number of Rs. 2 coins = m
Then, the value = 2 x m = 2m
The no. of Rs. 1 coins = 3m
Then, the value = 1 x 3m = 3m
     Total no. of coins = 120
According to the question,
=> 2m + 3m = 120
=> 5m          = 120
=> m            = 120/5
=> m            = 24
Therefore, the no. of Rs.1 coins = 3m
                                                   = 3 x 24
                                                   = 72

Answer 2

Answer:

60

Step-by-step explanation:

let no.of 2 rupee coins = x

then, no.of 1 rupee coins =3x

Total worth= 120

equation: 3x + x = 120

x+x=120/3

2x= 40

x= 40/2

x= 20

∵no.of two rupee coins = 20

∴ no of one rupee coins = 20 x 3= 60