campus Maths Puzzle

Q. A lady took out jacket and gloves, which are available in blue 26,yellow 30 and red 56. Power goes off, she can distinguish between gloves and jacket but not in colors. What is the possibility that she will pick up pair of gloves of each color?

Read Solution (Total 2)

235625/2589186 = 0.091
14 years agoHelpfull: Yes(2) No(15)

ans=(26c2+30c2+56c2)/112c2=.37
11 years agoHelpfull: Yes(2) No(0)

campus Other Question

Q. What is the next number of the following sequence

1, 11, 21, 1211, 1231, 131221,.... Q. There is ten box having 10 balls in each of 10 gm of weight but however it come to know that one box among them has defective balls, all the ten balls are either 9 gm or 11 gm how to find that box. You can use digital balance and only taking one reading from it.