F= 10 + 2 = 12
and A = 10-2 = 8
Now. F gives 5 cards to C
F = 12-5 = 7 and C = 10 + 5= 15
Now, C gives 3 cards to B
C = 15 - 3 = 12 and B = 10 + 3 = 13 Now, B gives 6 cards to D
B = 13-6 = 7 and D = 10 + 6= 16
Now, D gives one card to E
D = 16- 1 = 15 and E= 10+ 1 = 11
Therefore, B and F have equal number of cards.