Question

A model train has an engine and 6 box cars The engine is 14CM long and each box car is 11CM Lang There is a 1 cm space between cars How long is the train

Answer 1

86 cm

Explanation:

The total length of the engine and cars is ...

engine length + 6 × boxcar length

= (14 cm) + 6×(11 cm) = 80 cm

For a train with 7 cars, there will be 6 spaces, so the total length of the train is ...

length of cars + length of spaces

= 80 cm + 6×(1 cm) = 86 cm . . . . length of train