Question
Ken, Sam and Zeph have some erasers. The ratios of their erasers are as follows:

Ken : (Ken + Sam + Zeph) = 2 : 5
Sam : (Ken + Zeph) = 1 : 3

Zeph has 18 erasers more than Sam. In the end, Zeph gives away all he has to Sam and Ken so that both Sam and Ken end up with the same number of erasers, how many erasers has Ken received from Zeph?
4 m

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Ken, Sam and Zeph have some erasers. The ratios of their erasers are as follows:

Ken : (Ken + Sam + Zeph) = 2 : 5
Sam : (Ken + Zeph) = 1 : 3

Zeph has 18 erasers more than Sam. In the end, Zeph gives away all he has to Sam and Ken so that both Sam and Ken end up with the same number of erasers, how many erasers has Ken received from Zeph?