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प्रश्न
Choose the correct alternative:
Four persons are selected at random from a group of 3 men, 2 women and 4 children. The probability that exactly two of them are children is
विकल्प
`3/4`
`10/23`
`1/2`
`10/21`
उत्तर
`10/21`
APPEARS IN
संबंधित प्रश्न
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| Title | Psychologist | Socialist | Democrat | Total |
| Men | 15 | 25 | 10 | 50 |
| Women | 20 | 15 | 15 | 50 |
| Total | 35 | 40 | 25 | 100 |
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