Subject: General Aptitude · Chapter: Ratio and Proportion · Exam: · Marks: · Difficulty:
Visitors to a show were charged ` 12 each on the first day, ` 9.50 on the second, ` 4 on the third day and the total attendance on three days were in the ratio 3 : 6 : 11 respectively. Find the average charge per person for the whole show.
Answer
Answer (as printed):
Explanation
Let the attendance on the three days be 3x, 6x and 11x respectively. Then, total charges collected = ₹(12 × 3x + 9.5 × 6x + 4 × 11x) = ₹(36x + 57x + 44x) = ₹137x. Total attendance on 3 days = (3x + 6x + 11x) = 20x. Average charge per person = $₹\frac{137x}{20x} = ₹6.85$.
Explanation as extracted from the printed page; notation may be imperfect.