Probability 1 Question 18
26. If
(1997, 5M)
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Answer:
Correct Answer: 26.
Solution:
- The required probability
The roots of
The possible values of
| Value of |
Value of |
Number of pairs of |
|---|---|---|
| 1 | 1 | 1 |
| 2 | 1,2 | 3 |
| 3 | 3 | |
| 5 | 4 | |
| 6 | 4 | |
| 7 | 5 | |
| 9 | 5 | |
| 10 | 5 |
Therefore, the number of possible pairs
Also, the total number of possible pairs is
