Advertisements
Advertisements
प्रश्न
Answer the following:
Nine friends decide to go for a picnic in two groups. One group decides to go by car and the other group decides to go by train. Find the number of different ways of doing so if there must be at least 3 friends in each group.
योग
Advertisements
उत्तर
| Train | Car | Number of outcomes |
|
| No. of friends |
3 | 6 | 9C3 |
| 4 | 5 | 9C4 | |
| 5 | 4 | 9C5 | |
| 6 | 3 | 9C6 |
Required number = 9C3 + 9C4 + 9C5 + 9C6
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Permutations and Combination - Miscellaneous Exercise 3.2 [पृष्ठ ६८]
