4 adult tickets and 2 child tickets cost Rs. 3,540, while 3 adult tickets and 4 child tickets cost Rs. 3,480. Find the price of one adult ticket.
Answer and explanation
Correct answer: B. Rs. 720
- Step 1: Let an adult ticket cost and a child ticket (in rupees): and . Step 2. Eliminating and solving gives , so an adult ticket costs Rs. 720. Answer: Rs. 720. Why not the others: Rs. 330 is what you get if you give the price of a child ticket. Rs. 1,050 is what you get if you add the two prices. Rs. 590 is what you get if you treat all tickets as one price.
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