Question

If a 13m long iron rod weighs 23.4kg, then what will be the weight of 6m long iron rod?

Answer 1

Explanation:

Using unitary method,

13 metres=23.4 kg

1 mtr.=23.4/13=1.8kg

And, 6 mtrs. =6×1.8=10.8 kg

Answer 2

Explanation:

Using unitary method,

13 metres=23.4 kg

1 mtr.=23.4/13=1.8kg

And, 6 mtrs. =6×1.8=10.8 kg