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A lady had fine gloves and hats. 25 blue, 7 red and 9grey. She had to select a pair among them. But there was no light so she had to select in darkness the correct pair with a glove and a hat. Therefore how many combinations of same color she can select?
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- ans is 38 because we have to take initially 25+1+9+1+2
- 9 years agoHelpfull: Yes(1) No(3)
- total combination of same color = for blue (25C2) +for red (7C2) + for grey (9C2)
- 9 years agoHelpfull: Yes(1) No(2)
- ans 25+9+2=36
- 9 years agoHelpfull: Yes(0) No(1)
- answer is 25+9+2=36
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- (25C2 + 7C2+9C2)/41C2
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- 38 is the correct answer..100% right
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