Tina noticed juicy oranges in a shop and asked the shopkeeper for the price. He said each costs ₹ x. She bought 3 of them. What is the coefficient of x after calculating the total amount spent by Rina and Tina, if Rina had already spent ₹ 4y+5z?
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Solution
The price of each orange is ₹ x. Therefore the price of 3 oranges is ₹ 3x.