A bag contains 25 paisa, 50 paisa and 1 Re. coins. There are 220 coins in all and the total amount in…

Let the number of 25p coins be $x$ and 50p coins be $y$. Then 1 Re coins $= 3x$. Total coins: $x + y + 3x = 4x + y = 220$. Total value: $0.25x + 0.50y + 3x = 3.25x + 0.5y = 160 \implies 6.5x + y = 320$. Subtracting the two equations gives $2.5x = 100 \implies x = 40$, so $y = 220 - 4(40) = 60$.