Multiple choice

12 persons went a hotel for taking their meals. 11 of them spent Rs 150 each over their meals and the 12th spent Rs 22 more than the average expenditure of all . What is the amount that 12th has spent on his food?

  1. Rs 155

  2. Rs 151

  3. Rs 154

  4. Rs 152

  5. None of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Let the average expenditure be A. Then 11 persons spent 150 each, and 12th person spent A + 22. So 11 × 150 + (A + 22) = 12A. This gives 1650 + A + 22 = 12A, so 1672 = 11A, and A = 152. The 12th person spent 152 + 22 = 174, which is not among the given options, so the answer is None of these.

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