50-32-12 not equal to 2
A die is rolled 50 times such that a prime number appeared on it 32 times and composite number appeared 12 times. What is the probability of getting the number 1 on the die?
| A : |  | | |
| B : | | | |
| C : |  | | |
 | D : | | |
Number of times die is rolled = 50
Number of times prime number appeared = 32
Number of times composite number appeared = 12
It is known that:
2, 3, and 5 are prime.
4 and 6 are composite.
1 is neither prime nor composite.
∴ Number of times 1 appeared = 50 − 32 − 12 = 2
Probability is given by:
∴ Required probability
Thus, the probability of getting 1 is
.
The correct answer is C.
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