Ben had 1/5 as many books as Jann. After Jann gave Ben 4 books, Ben had 1/3 as many books as Jann. How many books did Jann have in the end?

Guest May 28, 2021

#1**+1 **

Initially

b = 1/5 j

then

b+4 = 1/3 (j-4) sub in the first equation

1/5 j + 4 = 1/3 (j-4)

4 + 4/3 = 1/3j - 1/5j

j = initially = 40 then she gave away 4 to have 36 books at the end

ElectricPavlov May 28, 2021