Question

Q14: 5 books and 5 paper sheets are placed in a stack. Find the total thickness of the stack if each book has a thickness of 20 mm and each sheet has a thickness of 0.016 mm.​

Answer 1

Step-by-step explanation:

5 books = 5x20

=100mm

5 papers = 5x0.016

=0.08

100x0.08

=8cm

Answer 2

$\huge { \pink { \boxed{ \underline{ \rm{ \purple{Required \: Answer:- }}}}}}$

$\begin{gathered}\bf Given = \begin{cases} &\sf{thickness\ of\ each\ book\ =\ 20mm.} \\ &\sf{thickness\ of\ each\ sheet\ =\ 0.016mm} \end{cases}\end{gathered}$

$\begin{gathered}\bf To \: Find = \begin{cases} &\sf{total \: thickness \: of \: stack.} \end{cases}\end{gathered}$

Understanding!

Here, we will first multiply 5 with 20. It is because we have got measurement of each book i.e. 20 mm. So we will multiply and find thickness of all 5 books. And likewise we'll do for the sheets.

Solution:-

$\longrightarrow \sf 5 \times 20 = 100mm$

So, the total thickness of 5 books is 100mm.

$\longrightarrow \sf 5 \times 0.016 = 0.08mm$

So, the total thickness of 5 paper sheets is 0.08 mm.

Now,

For finding Total thickness of stack we will add both measurements.

$\longrightarrow \sf 10 + 0.080 = 10.08$

So, the total thickness of stack is 10.08 mm.