Question

in a pack 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 pack .

Answer 1

Answer:

All explained in the image

Answer 2

Answer:

$Total \: thickness\:of\:the\:pack\\=1.0008\times 10^{2}\:mm$

Step-by-step explanation:

$Number\:of\:Books=5$

$Thickness\:of\:each\:book \\in\:a\:pack = 20\:mm$

$Number\:of\:sheets=5$

$Thickness \:of \: each \\sheet=0.016\:mm$

$Now,\\Total \: thickness\:of\:the\:pack\\=(Number\:of\:books\times each\:book\: thickness\\+Number\:of\: papers\times each \:paper\: thickness)$

$=5\times 20\:mm+5\times 0.016\\=5(20+0.016)\\=5\times 20.016\\=100.08\:mm\\=1.0008\times 10^{2}\:mm$

Therefore,

$Total \: thickness\:of\:the\:pack\\=1.0008\times 10^{2}\:mm$

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