Question

Arnav has $ 50 in form of coins of denominations of 2and5 if there arec10 coins of 2, then number of coins of 5 are​

Answer 1

Answer:

let no of $2coins=x

let no of $5coins=y

2x+5y=50

2*10+5x=50

30+5x=50

5x=30

x=6