Question

the cost of 3 1/2kg of onion is 70rs.how mush will 1 kg of onion cost
1. rs 10
2. rs 20
3. rs 15
4. rs 25​

Answer 1

option 2) Rs. 20

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Answer 2

Rs 20 is correct option.

3 kg + 1/2 kg = 70rs

let, 1kg = 20

3 x 20 + 1/ 2 x (20)

60 + 10

= 70rs.