Question

If a thickness of a pile 12 cardboards is 65mm,find the thickness of a pile of 312 such cardboards​

Answer 1

Hello!

Here is the answer for your question!

Question:-  If a thickness of a pile 12 cardboards is 65mm,find the thickness of a pile of 312 such cardboards​

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Answer:-

• Thickness of 12 cardsboard pieces = 65mm

• 312 = 12 × 26

 so, thickness of 312 cardboard pices = 26 × thickness of 12 cardboard pieces

  Thickness of 312 pieces of cardboard = 26 × 65 = 1690mm

• Thickness of a pile of 312 cardboard pieces is 1690mm

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Hope this helped you with your doubt :)  

Answer 2

Given :

• 12 cardboards = 65mm
• 312 cardboards = ?

To Find :

• Thickness of 312 cardboards

Type of variation :

• Direct
• Direct variation means if the value of one thing increases the other will also increase. In simple words if x increases y will also increase.

Formula :

• Cross multiplication

Solution :

$\longrightarrow{\tt{\dfrac{312 \times 65}{12}}}$

$\longrightarrow{\tt{\dfrac{\cancel{312} \times 65}{\cancel{12}}}}$

$\longrightarrow{\tt{26 \times 65}}$

$\large{\boxed{\implies{\tt{ 1690 mm }}}}$

This can be converted into cm :

169 cm