Question

there are 6 black counters and 4 white counters in bag A, 7 black counters and 3 white counters in bag B, 5 black counters and 5 white counters in bag C. Bernie takes at random a counter from bag A and puts the counter in bag B. He then takes at random a counter from bag B and puts the counter in bag C

Answer 1

What it the question???