Question
A club has 6 men and 5 women. How many committees of 5
have at least 2 women?Solution
ATQ,
2 women: C5,2 × C6,3 = 200 3 women: C5,3 × C6,2 = 150 4 women: C5,4 × C6,1 = 30 5 women: 1 Total = 381
3, 8, 28, 88, 258, 648Â
- Find the wrong number in the given number series.
300, 600, 200, 900, 112.5, 1125 2100, 2140, 2186, 2240, 2300, 2372
- Find the wrong number in the given number series.
7, 16, 34, 70, 144, 290 121, 240, 386, 555, 751, 976
Find the wrong number in the given number series.
513, 622, 735, 862, 993, 1139
164, 141, 122, 105, 92, 80
1024Â Â 3072Â Â Â 384Â Â Â 1152Â Â Â 145Â Â Â 432
Find the wrong number in the given number series.
256, 64, 16, 4, 2, 0.25
9256Â Â 6844Â Â Â 4888Â Â 3350Â Â 2152Â Â 1276