Question

A book is 5cm thick and each cover is 1.5mm thick .How thick is the book without its covers?

Answer 1

Answer:

4.7 cm

Explanation:

1.5mm =0.15 cm ,

so both covers together would be 0.3 cm , subtract that from 5 cm,i.e.,

5 -0.3 = 4.7 cm

Answer 2

Answer:47mm

Explanation:cover thickness = 1.5×2=3

Total thick= 5cm=50 mm

Book thickness =50-3=47

Hope this helpful