Question

Aruna has only Rupees 1 and rupees 2 coins with her if the total number of the coins that she has is 50 and the amount of money with her is rupees 75 then find the number of Rupees 1 and rupees 2 coins respectively

Answer 1

let the no.of 1 rupee coin be'x'
It is given that the total no.of coins she has is 50 coins,then no.of 2 rupee coins are '50-x'
soln:x+2(50-x)=75
        x+100-2x=75
        100-75=x
         x=25
no.of one rupee coins=1(x)=25
no.of two rupee coins=2(50-x)=2(50-25)=50