Question

In a stack there are 5 books each of thickness 20mm and 5 paper sheets each of thickness 0.016 . what is the total thickness of the stack.

Answer 1

A/Q
thickness of 5 books = 20mm
thickness of 5 sheets = 0.016
then,
total thickness of stack = 5(20+0.016)mm
= 100mm + 0.080mm
= 100.08 mm

Answer 2

Answer:

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Step-by-step explanation:

Thickness of 1 book= 20 mm

Thickness of 5 books= (5 x 20)mm= 100 mm

Thickness of 1 sheet of paper= 0.016 x 5 = 0.016 mm

Thickness of 5 sheets of paper= 0.016 x 5 = 0.08 mm

Total thickness of stack= 100 mm + 0.08 mm = 100.08 mm

                                                            = 1.0008 x 10^2 mm.