Question

If half a litre of milk costs 22 rupees, how much will 7 litres cost?

Answer 1

`1/2 + 1/2 = (1 + 1)/2 = 2/2` = 1 litre

22 + 22 = ₹ 44

That is, 1 litre costs ₹ 44

∴ 7 litres costs 44 × 7 = ₹ 308

∴ 7 litres costs ₹ 308.