NDA 2011
- Exam
- NDA
- Year
- 2011
- Subject
- Mathematics
- Chapter
- Permutation and Combination
NDA 2011 · Mathematics · Permutation and Combination
What is the number of ordered pairs of non-zero positive integers...
What is the number of ordered pairs of non-zero positive integers such that ?
Options
- A4
- B5
- C6
- D8
Correct answer
C. 6
Step-by-step solution
The correct answer is option (C).