Janka and Marienka calculated that there are 210 gingerbreads on the gingerbread house. Janko ate one-seventh of all gingerbreads, and Marienka ate a third less than Janko. How many gingerbreads remained in the gingerbread house?

Result

n =  160

#### Solution:

$J = 210/7 = 30 \ \\ M = (1-1/3) \cdot \ J = (1-1/3) \cdot \ 30 = 20 \ \\ \ \\ n = 210-J-M = 210-30-20 = 160$ Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

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