In a stack there are 5 books each of thickness 20mm and 5 paper sheets each of thickness 0.016 mm. What is the total thickness of the stack.
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total no. of books in stack = 5
thickness = 20mm
total thickness of the book = 20 × 5 = 100
total no. of paper = 5
thickness of the paper 0.016mm
total thickness of paper = 5 × 0.016 = 0.080
total thickness of the stack = 100 + 0.080 = 108.080
•°• the thickness of the stack is 1.008 × 102mm
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Given,
Thickness of 1 book = 20 mm.
Thickness of 1 paper sheet = 0.016 mm.
Find,
Total thickness of stack.
To find,
Total thickness of 5 books = 5 × 20 = 100
Total thickness of 5 paper sheets = 5 × 0.016 = 0.08
Now,
Thickness of total stack
100 + 0.08 = 100.08 mm.
Therefore, total thickness of stack is 100.08 mm.
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