Question

A box wight 1 3 and 4 kg. Find the weight of 10 such boxs

Answer 1

Answer:

1 box = 4kg

10 boxes = 4 x 10

               = 40 kg

I didn't get your question... why did you include 13?

Answer 2

Answer:

when weight of 1 box is 3kg

so, weight of 10 boxes=10 x3=30kg

when weight of one box is 4kg

so, weight of 10 boxes is 10 x 4 =40kg