Question

Cost of $11kg$ of rice is Rs $80$. What will be the cost of $1kg$ of rice?

• A. $Rs.\frac{80}{11}$
• B. $Rs.\frac{80}{1}$
• C. $Rs.7.9$
• D. $Rs.7.1$

Answer 1

The correct option is A $Rs.\frac{80}{11}$

This is a classic case of the simple unitary method. If the cost of $11kg$ of rice is Rs $80$, the cost of $1kg$ will simply be Rs $80$ divided into $11$ parts. So we have,
Cost of $1kg=Rs\frac{80}{11}$