Question

The rate of potatoes in the market is 40 rupees per kilogram. Samu's mother sent him on an errand to get two and a half kg potatoes. How much did Samu pay for the potatoes?

• A. ₹ 100
• B. ₹ 105
• C. ₹ 126
• D. ₹ 140

Answer 1

The correct option is A ₹ 100

A kilo of potato costs ₹ 40.
So, two and a half or $2\frac{1}{2}$ or $\frac{2\times 2+1}{2}$ or $\frac{5}{2}$ kg of potatoes will cost
₹ $40\times \frac{5}{2}=5\times 20=₹100$.