A blind man had only black or white socks.In his drawer he had 4 socks. He went to the drawer and took out 2 socks. The chances that he had a pair of white socks was 1⁄2.
What were the chances that he had drawn out a pair of blacksocks

• 2 socks can be taken out of 4 socks in 4c2=6 ways. The probability that both are wht is:1/2. So the numerator must b 3 so dat 3/6 =1/2. So number of ways that 2 wht socks cn b chosen is= 3c2= 3 ways. there is 3 wht socks. so number of black socks=1(4-3). the chances that he had drawn out a pair of blacksocks is 0.
• 10 years agoHelpfull: Yes(10) No(0)
• sorry there is a mistake in the question correct it as 1/2
  
  find the solution now
• 10 years agoHelpfull: Yes(2) No(1)
• ans: zero
  sol: He had 3 white socks and 1 black sock in his drawer. His chances were, white socks= 1/2 ; wb= 1/2 bb=zero
  
• 10 years agoHelpfull: Yes(1) No(5)