Question

Using a Price List

Item	Price in Rs (per kg)
Tomato Potato Onion Carrot Pumpkin	8 12 10 16 4

(a) How much does $\frac{1}{2}$ kg of tomatoes cost?
(b) Which costs more – $\frac{1}{2}$ kg of onions or $\frac{1}{4}$ kg of carrots?
(c) What is the price of $\frac{3}{4}$ kg of potatoes?
(d) Keerthi is going for shopping. She has only Rs 20 with her. Can she buy all the things in her
shopping list?



(e) Make two questions yourself from the price list.
1.
2.

Answer 1

(a) Cost of 1 kg tomatoes = Rs 8
∴ Cost of $\frac{1}{2}$ kg tomatoes = Rs 8 ÷ 2
= Rs 4

(b) Cost of 1 kg onions = Rs 10
Cost of 1 kg carrots = Rs 16
∴ Cost of $\frac{1}{2}$ kg onions = Rs 10 ÷ 2
= Rs 5
And,
Cost of $\frac{1}{4}$ kg carrots = Rs 16 ÷ 4
= Rs 4
The cost of $\frac{1}{2}$ kg onions is more than the cost of $\frac{1}{4}$ kg carrots.

(c) Cost of 1 kg potatoes = Rs 12
Cost of $\frac{1}{4}$ kg carrots = Rs 12 ÷ 4
= Rs 3
∴ Cost of $\frac{3}{4}$ kg potatoes = Rs 3 × 3
= Rs 9

(d) Keerthi has Rs 20.
Her shopping list includes $\frac{1}{2}$ kg potatoes, 2 kg pumpkins and $\frac{1}{4}$ kg carrots.
Cost of $\frac{1}{2}$ kg potatoes = Rs 12 ÷ 2
= Rs 6
Cost of 2 kg pumpkins = Rs 2$\times$4
= Rs 8
Cost of $\frac{1}{4}$ kg carrots = Rs 16 ÷ 4
= Rs 4
Total cost of all vegetables = Rs 6 + Rs 8 + Rs 4 = Rs 18
Keerthi can purchase all the vegetables in her shopping list, as she has Rs 20.

(e)
1. How much pumpkin can she buy with the total money?
2. What will be the cost of 2 kg onions?

Disclaimer: It is highly recommended that the students prepare the sample questions on their own.