Question

If 3 boxes contain 2 1/2 meters of wire, how long is the wire in 4 boxes

Answer 1

3 boxes contain 2 1/2 metres of wire, So

One box will contain = (2 1/2) / 3

☛ (5/2) / 3

☛ 5/6 metres

4 boxes will contain = 4 × ( wire in one box )

☛ 4 × 5/6

☛ 10/3

Hence, 4 boxes will contain 10/3 metres of wire