Question

Cost of n meters of rope is 's' rupees, then what is the cost of m meters of rope at the same rate?

• A. Rs.(mn/s)
• B. Rs.(sn)
• C. Rs.(ms)
• D. Rs.(ms/n)

Answer 1

The correct option is D

Rs.(ms/n)

The length of rope and the cost of rope are in direct proportion.

$\frac{Length}{Cost}$ = $\frac{n}{s}$ = $\frac{m}{requiredcost}$

So, the cost of m meters of rope = Rs.$\frac{ms}{n}$