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`        we wist to select two  person ffom 8 person but if A is choosen then B must be choosen in how many ways can the selection be made `
2 years ago

Arun
23479 Points
```							 case 1  :   A and B is not included  then number of ways = 6C2 = 15   case 2 : B is selected A is not selected  number of ways  = 1* 6C1  = 6   case 3:  A and B both are selected  number of ways = 1*1 = 1   so total ways  = 1+6+15 =22
```
2 years ago
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Course Features

• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions