Question

Find the cost of sugar and wheat per kg if the cost of 7 kg of sugar and 3 kg of wheat is Rs. 34 and cost of 3 kg of sugar and 7 kg of wheat is Rs. 26.​

Answer 1

Answer:

12 rs.per kg

Step-by-step explanation:

Let the cost of 1 kg of rice and wheat be x & y respectively.

given that 3x+4y=93 -(i)

5x+7y=159 -(ii)

(i)×5−(ii)×3

−y=−12

y=12

3a+4y=93

3x=93−4(12)=93−48=45

x=5

∴ cost of rice =15 Rs.

cost of wheat =12Rs. per kg

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