Question

Which is better buy?a) 3kg tomatoes for rs 19.50 or 7kg tomatoes for RS 47.75

Answer 1

Answer:

Step-by-step explanation:

If 3 kg tomatoes are worth rs. 19. 50 , then,

1 kg = 19.50÷3

       = ₹6.5

7 kg = 6.5×7

        = ₹45.5

Hence, (a) is a better deal

Answer 2

Since,

In Set a,

3kg costs ₹19.50

Therefore, 1kg costs (19.50/3)₹ = ₹6.50

In Set b,

7kg costs ₹47.75

Therefore, 1kg costs (47.75/7)₹ = ₹6.82 (Recurring)

Therefore, it is better to buy set 'a' as it is cheaper..

Hope it helps...

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