Question

Paper weighs 4.9 kg for every 500 sheets, how much will 700 sheets weigh?

Answer 1

6.86 kg

Explanation:

Here ,apparently the weight and number of sheets are proportional.

Let m be the weight of 700 sheets.

`\text{} \begin{matrix}500\ \text{sheets} \text{} \longrightarrow 4.9\ \text{kg} \\ 700\ \text{sheets} \text{} \longrightarrow m\ \text{kg} \end{matrix}`

coefficient of proportionality :

`\text{} \text{The coefficient of proportionality is equal to :} \ (700)/(500) =(7)/(5)`

Then

`(m)/(4.9) = (7)/(5)`

Then

`m = (7)/(5) * 4.9 =6.86 \ \text{kg}`