Question

Rama has only 2 ruppes and 5 rupees coins in her purse. If she has 60 coins worth ₹ 192 then how many coins of each denomination dees she have?​

Answer 1

Step-by-step explanation:

Let xbe the number of 2 rs coin and y be the number of 5 rs coin

then 2x+5y=192

and x+y=60

let it be eq 1 and 2.

Multiply eq 2 with 2

Gives 2x+2y=120

Subtract eq 2 from 1

gives 3y=72

that is y=72/3

y=24

Then eq2 gives

x+24=60

x=60-24

x=36

So she have 36(x) 2 Rs coin and 24(y) 5 Rs coin