#Day 1 Challenge:
#Mathematics
#Answer these 3 questions correctly to win 50 birr! (First correct answer wins.)
#Write your answers as a comment.
1. Let A and B be two sets that contain 15 and 17 elements respectively. If A∩B contains 10 elements, what is the number of elements in A∪B?
A. 22
B. 12
C. 42
D. 32
2. List all subsets of {3, 4, 5}.
3. Is the statement {𝑎, 𝑏} ⊄ {𝑏, 𝑐, 𝑎} true or false?
Rules:
• One comment per person: Only one answer per user is allowed.
• No editing: Edited answers will be disqualified.
#English at 1:30
#Mathematics
#Answer these 3 questions correctly to win 50 birr! (First correct answer wins.)
#Write your answers as a comment.
1. Let A and B be two sets that contain 15 and 17 elements respectively. If A∩B contains 10 elements, what is the number of elements in A∪B?
A. 22
B. 12
C. 42
D. 32
2. List all subsets of {3, 4, 5}.
3. Is the statement {𝑎, 𝑏} ⊄ {𝑏, 𝑐, 𝑎} true or false?
Rules:
• One comment per person: Only one answer per user is allowed.
• No editing: Edited answers will be disqualified.
#English at 1:30