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

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Detailed Solution

Concept- In a stack there are 5 books each of thickness 20 mm and 5 paper sheets each of thickness 0.016 mm. To find thickness of stack we use the formula,

.
Thickness of 5 books

= 5 \times 20 = 100 mm

Number of paper sheets = 5
Each sheet of paper is 0.016 mm thick.
So, thickness of 5 paper sheets

= 5 \times 0.016 = 0.080 mm

Here,

l = 5, b = 20, h = 0.016 .

Here, the stack's overall thickness equals the sum of its five book and five paper thicknesses.

.
The total thickness of stack is

.
Hence, the answer is 100.08mm

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