Seven people A, B, C, D, E, F, and G are standing in a line facing north. A is standing to the immediate left of B. D is standing to the immediate right of E. F is standing between A and E. G is standing at the right end of the line. E is not standing next to F.Question: Who is standing at the left end?A. AB. BC. CD. D
Question
Seven people A, B, C, D, E, F, and G are standing in a line facing north. A is standing to the immediate left of B. D is standing to the immediate right of E. F is standing between A and E. G is standing at the right end of the line. E is not standing next to F.Question: Who is standing at the left end?A. AB. BC. CD. D
Solution
To solve this problem, we need to arrange the people according to the given conditions.
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A is standing to the immediate left of B. So, we have A - B.
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D is standing to the immediate right of E. So, we have E - D.
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F is standing between A and E. So, we have A - F - E - D.
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G is standing at the right end of the line. So, we have A - F - E - D - G.
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E is not standing next to F. But from point 3, E is standing next to F. This is a contradiction. So, we need to rearrange the people.
Let's try to rearrange them:
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A is standing to the immediate left of B. So, we have B - A.
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D is standing to the immediate right of E. So, we have E - D.
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F is standing between A and E. So, we have B - A - F - E - D.
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G is standing at the right end of the line. So, we have B - A - F - E - D - G.
Now, all conditions are satisfied. So, the person standing at the left end is B. Therefore, the answer is B. B.
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