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Question

In a queue, A is eighteenth from the front while B is sixteenth from the back. If C is twenty-fifth from the front and is exactly in the middle of A and B, then how many persons are there in the queue?
  1. 45
  2. 46
  3. None of the above
  4. 47
  5. 48


Solution

The correct option is D 47

Number of persons between A and C = 25 - 18 = 7
The position of C from front = 18 + 7 = 25th
Also, number of persons between C and B = 7
The position of C from the back = 16 + 7 = 23rd
Total number of persons = position of C from front + position of C from back -1
25 + 23 - 1 = 47
Hence, the required answer is (3)

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