Seven students sit in a row. If Ahmed is fourth from the left and third from the right, how many students are there in total?

  • A. six
  • B. seven
  • C. eight
  • D. nine

Explanation

Adding the two positions and subtracting one for the double count gives 4 plus 3 minus 1, which is 6. The stated figure of seven is therefore inconsistent with the positions, which is exactly the kind of check a careful candidate should make. Trust the arithmetic over the introductory wording.

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