A food outlet sells two types of meal combos. The first combo contains 2 sandwiches and 1 juice and costs ₹80. The second combo contains 1 sandwich and 2 juices and costs ₹70. What is the price of one sandwich?
₹30
Let the price of one sandwich be \(s\) and the price of one juice be \(j\) (in ₹).
From the first combo: \(2s + j = 80\). From the second combo: \(s + 2j = 70\).
Multiply the first equation by 2: \(4s + 2j = 160\).
Subtract the second equation from this: \((4s + 2j) - (s + 2j) = 160 - 70\), giving \(3s = 90\).
Therefore \(s = \dfrac{90}{3} = 30\).
Hence, the price of one sandwich is ₹30.
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