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Aptitude Interview Question:
Rita puts 9 pairs of black socks and 8 pairs of white socks in a drawer. She takes 3 socks. What is the probability that we get a pair of black socks?
Submitted by: Administratoramong 3 socks she has to choose 2 black socks from 9 pair(=18) of black socks, that can be done in 18C2 ways. and the third sock can be chosen from among the remaining socks that can be done in ((8+9-1)x2 )C 1 ways i.e. in 32 ways.
ans. 32 X 18C2
Submitted by: Administrator
ans. 32 X 18C2
Submitted by: Administrator
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