Campus
Maths Puzzle
Numerical Ability
A refrigerator contains 12 cans.7 blue cans and 5 red cans. In how many ways can we remove 8 cans from the refrigerator so that at least 1 blue can and red can remains in the refrigerator.
Read Solution (Total 1)
-
- possible draw 8 balls and in refrigirator contains atleast 1 blue and 1 red ball are (6,2) (5,3) (4,4)
6 2---->7c6*5c2--->7*10=70
5 3---->7c5*5c3--->21*10=210
4 4---->7c4*5c4--->35*5=175
70+210+175=455
4 4----> - 10 years agoHelpfull: Yes(0) No(1)
Campus Other Question