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 after 9 CZK per kilogram. However, he must pay CZK 150 for car gasoline.

How many kilograms of apples would have Mr. John buy that for him to be more cost-effective to drive to the agricultural farm?

Correct result:

x =  25 kg

Solution:


15x = 9x+150

15•x = 9•x+150

6x = 150

x = 25

Our simple equation calculator calculates it.



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