There were 35 students in a hostel Due to the admission…

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There were 35 students in a hostel. Due to the admission of 7 new students the expenses of the mess were increased by Rs.42 per day while the average expenditure per head diminished by Re 1. What was the original expenditure of the mess?

  1. A. Rs. 450
  2. B. Rs. 320
  3. C. Rs. 550
  4. D. Rs. 420

Answer: Option D

Here is complete explanation of There were 35 students in a hostel Due to the admission….

Solution(By ExamCraze Team)

Let the original average expenditure be Rs. x then, 42(x - 1) - 35x = 42 ⇒ 7x = 84 ⇒ x = 12 Therefore original expenditure, = Rs. (35 × 12)
= Rs. 420

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