"There were 35 students in a hostel. If the number of the students is increas
Channel: Doubtnut
Date: 2020-04-05

"There were
 35 students in a hostel. If the number of the students is increased by 7,
 then the expenses of the mess increase by Rs 42 per day, while the average
 expenditure per head diminishes by Rs 1. The original expenditure of the mess
 per day was
(a) Rs
 400 (b) Rs 420 (c) Rs 432 (d) Rs 442"