Given below is the number of male and female students in classes A, B, and C. Some data are missing which you need to find based on the instructions p...
Question
Given below is the number of male and female students in classes A, B, and C. Some data are missing which you need to find based on the instructions provided.
| A | B | C | |
|---|---|---|---|
| Boys | 50 | -- | -- |
| Girls | -- | 80 | 60 |
Note:
- The probability of selecting a boy from class A is .
- The probability of selecting a boy from all the boys of all classes is such that the boy selected is either from class B or class C.
- The probability of selecting a boy from class B is equal to the probability of selecting a boy from class C.
Question: How many boys are there in class C?