Question

If $1litre$ of milk costs Rs $40$, what will be the cost of $9litres$ of milk?

• A. Rs $200$
• B. Rs $360$
• C. Rs $400$
• D. Rs $250$

Answer 1

The correct option is B Rs $360$

Cost of $9litres$ of milk is nothing but $9$ times the cost of $1litre$. Therefore, we have:
Cost of $9litres=9\times$ Rs $40$ = Rs $360$