Mr. John

Mr. John wants to buy winter apples Spartan. There are two ways to buy: 1) buy apples at the marketplace, where 1 kg costs 15 CZK. 2) Bring the car to the agricultural farm, where the apples are sold for 9 CZK per kilogram. However, he must pay CZK 150 for car gasoline. How many apples would Mr. John buy for him to be more cost-effective to drive to the agricultural farm?

Correct answer:

x =  25 kg

Step-by-step explanation:

15x=9x+150  15 x=9 x+150  6x=150  x=6150=25  x=25=25 kg

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