Thanks a lot for your help you all. Maybe 'e' is not even the right question, I tried what some of you did, assuming a,b,c and d where right and using thos values in the equation but there seems to be something wrong:

Using 'c' and 'd':

c)Mark picked up 12 apples in the morning.

d)John picked up 24 more apples than Mark in the morning.

John picked up 2/3 more apples than Mark:

J=2/3M+M

J=5/3M

J= (2/3)(12)+12

J=20, but since John picked up 24 more apples than Mark the answer should be 36, right?, So 'e' would be false, but also 'a' and 'b'.

I took this problem from a practice test, so I might just don't worry about it and solve the other problems

Thanks a lot for your help, I really appreciate it.