Question

Find in metres the height of a pile of 25 books if each book is 3 cm 5 mm thick.

Answer 1

Answer:

Step-by-step explanation:

height of 1 book=3cm5mm

height of 25 books=3.5*25

                               =87.5cm

but 1m=100cm

hence its height=0.875m

Answer 2

Step-by-step explanation:

Height of one book =3.5cm=0.035m

Height of 25 books = 0.035×25=0.875m

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