Answer :

MimiWal
28 / 8 = 3.5
20 x 3.5 = 70
20 men can chop down 70 trees
I think it's 70 cause 8 goes into 20, (2 times equals 16) so 28+28= 56 and the 4 left over men are half of 8 so half of 28 is 14 so 56+14=70