Question

If the cost of $93$ metre of a polypropylene plastic sheet is $Rs.1395,$ then what would it cost in to buy $105$ metre of polypropylene plastic ?

• A. $Rs.1340$
• B. $Rs.1570$
• C. $Rs.1575$
• D. $Rs.1270$

Answer 1

The correct option is C $Rs.1575$

Let the cost of $105$ metre of polypropylene plastic be $Rs.x.$
If more plastic sheet is bought, the cost will also be more.
$\therefore$ It is a case of direct propotion.
$\Rightarrow \frac{93}{1395}=\frac{105}{x}$
$\Rightarrow x=\frac{105\times 1395}{93}=1575$
Thus, the required cost is $Rs.1575$