Question: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?
Answer Let the total average expenditure be Rs. x then, 42 (x - 1) - 35x = 42 => 7x = 84 => x = 12 `:.` Origanl expenditure = Rs (35 x 12) = Rs 420
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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?