Question
Question: A college offers 7 courses in the morning and 5 in the evening. The number of ways a student can sel...
A college offers 7 courses in the morning and 5 in the evening. The number of ways a student can select exactly one course, either in the morning or in the evening
A
27
B
15
C
12
D
35
Answer
12
Explanation
Solution
The student has seven choices from the morning courses out of which he can select one course in 7 ways.
For the evening course, he has 5 choices out of which he can select one course in 5 ways.
Hence he has total number of 7 + 5 = 12 choices.