Question

A ship is 400m laig and 100m wide. The length of its model is 20 cm. find the surface area of the deck of the model. 

Answer 1

20 cm represents 400 m

1 cm represesnts `400/20` = 20 cm

Width of model = `100/20` = 5 cm

Length of model = 20 cm

Surface area of the deck of the model= 5 cm x 20 cm

= 100 cm²