Question

The mass of a pencil box is 200 g 540 mg . What will Be the mass of 4 such boxes in grams (g) ?​

Answer 1

Given,

The mass of a pencil box$\[ = 200{\rm{g}}\,\,540{\rm{mg}}\]$

To find,

The weight of four such boxes in grams.

Solution,

Know that here the weight of one box is given and in order to calculate the weight of four such boxes multiply the given weight of one box by four.

Therefore,

$\[\begin{array}{l} \Rightarrow \left( {4 \times 200} \right)g + \left( {4 \times 540} \right)mg\\ \Rightarrow 800g + 2160mg\\ \Rightarrow 800g + 2g + 160mg\\ \Rightarrow 802g + 160mg\end{array}\]$

Solve further,

$\[\begin{array}{l} \Rightarrow 802g + 0.16g\\ \Rightarrow 802.16g\end{array}\]$

Hence, the weight of four such boxes is $\[802.16\]$grams.