In a mens hostel, there were 95 students. To accommodate 30 more students the average is decreased by rupees 5. But total expenditure increased by Rs.500. Find the total expenditure of the hostel now ?
A) Rs. 4680B) Rs. 4420C) Rs. 4960D) Rs. 5480
In a hostel there were 90 students
Answer: A) Rs. 4680
Explanation:
Let the expenditure on the 95 students be ‘x’
Then,
95x + 500 = 120(x – 5)
95x + 500 = 120x – 600
120x – 95x = 1100
25x = 1100
=> x = 44
Therefore, total expenditure of the hostel becomes
95 x 44 + 500 = 4680.
Subject: Average – Quantitative Aptitude – Arithmetic Ability
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