Answer:
20 counters/box
Step-by-step explanation:
Missing counters(m)= 8
Total number of counters available (t-m)= 132
Required number of counters(t):
=(t-m) + m
= 132 + 8 = 140
Total number of boxes(tB) = 7( 6 full and one with eight missing)
Total Counters/Boxes= t/tB
= 140/7
= 20
