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Sagot :
To determine which groups contain at least one 6th grader, we need to identify groups that have at least one of the digits 1, 2, or 3.
Here is a step-by-step breakdown of each group:
1. Group 1: 602
- Contains the digit 2 (6th grader).
- Group 1 has a 6th grader.
2. Group 2: 433
- Contains the digit 3 (6th grader).
- Group 2 has a 6th grader.
3. Group 3: 791
- Contains the digit 1 (6th grader).
- Group 3 has a 6th grader.
4. Group 4: 398
- Contains the digit 3 (6th grader).
- Group 4 has a 6th grader.
5. Group 5: 041
- Contains the digit 1 (6th grader).
- Group 5 has a 6th grader.
6. Group 6: 209
- Contains the digit 2 (6th grader).
- Group 6 has a 6th grader.
7. Group 7: 467
- Does not contain the digits 1, 2, or 3 (no 6th graders).
- Group 7 does not have a 6th grader.
8. Group 8: 570
- Does not contain the digits 1, 2, or 3 (no 6th graders).
- Group 8 does not have a 6th grader.
9. Group 9: 221
- Contains the digits 2 and 1 (6th graders).
- Group 9 has a 6th grader.
10. Group 10: 407
- Does not contain the digits 1, 2, or 3 (no 6th graders).
- Group 10 does not have a 6th grader.
Based on this analysis, the groups that contain at least one 6th grader are:
- Group 1
- Group 2
- Group 3
- Group 4
- Group 5
- Group 6
- Group 9
Therefore, the correct answer is:
C. 1, 2, 3, 4, 5, 6, 9
Here is a step-by-step breakdown of each group:
1. Group 1: 602
- Contains the digit 2 (6th grader).
- Group 1 has a 6th grader.
2. Group 2: 433
- Contains the digit 3 (6th grader).
- Group 2 has a 6th grader.
3. Group 3: 791
- Contains the digit 1 (6th grader).
- Group 3 has a 6th grader.
4. Group 4: 398
- Contains the digit 3 (6th grader).
- Group 4 has a 6th grader.
5. Group 5: 041
- Contains the digit 1 (6th grader).
- Group 5 has a 6th grader.
6. Group 6: 209
- Contains the digit 2 (6th grader).
- Group 6 has a 6th grader.
7. Group 7: 467
- Does not contain the digits 1, 2, or 3 (no 6th graders).
- Group 7 does not have a 6th grader.
8. Group 8: 570
- Does not contain the digits 1, 2, or 3 (no 6th graders).
- Group 8 does not have a 6th grader.
9. Group 9: 221
- Contains the digits 2 and 1 (6th graders).
- Group 9 has a 6th grader.
10. Group 10: 407
- Does not contain the digits 1, 2, or 3 (no 6th graders).
- Group 10 does not have a 6th grader.
Based on this analysis, the groups that contain at least one 6th grader are:
- Group 1
- Group 2
- Group 3
- Group 4
- Group 5
- Group 6
- Group 9
Therefore, the correct answer is:
C. 1, 2, 3, 4, 5, 6, 9
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