Question

$38kg$ of rice costs $Rs.275.50$. What is the cost of $20kg$ of such rice?

Answer 1

Cost of $38$ kg of rice$=$Rs. $275.50$

Cost of $1$kg of rice$=$Rs. $\frac{275.50}{38}$

Cost of $20$kg of rice$=\frac{275.50}{38}\times 20$

$=\frac{275.50}{100\times 38}\times 20$

$=145$

$\therefore$ Cost of $20$kg of rice$=$Rs. $145$.