Answer: 12 pairs of white socks
Step-by-step explanation:
From the information given,
total number of socks = 24
If 1/3 are blue, it means that the number of blue socks = 1/3 x 24 = 8
If 1/6 are black, it means that the number of black socks = 1/6 x 24 = 4
Number of blue and black socks = 8 + 4 = 12
Number of pairs of white socks = 24 - 4 = 12