Question
Download Solution PDFDuring a school excursion each student of junior school was charged Rs. 325 and each student of senior school was charged Rs. 400. If there were 80 students from junior school and the combined average amount charged per student was Rs. 352, then how many students from senior school went for the excursion?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation
Let the number of students in senior school be a.
The total amount charged from students of junior school = 325 × 80
⇒ 26000
The total amount charged from students of senior school = 400 × a
⇒ 400a
The total amount charged from both the schools = (a + 80) × 352
⇒ (a + 80) × 352 = 2600 + 400a
⇒ 400a - 352a = 28160 - 26000
⇒ 48a = 2160
⇒ a = 45.
The number of students from the senior school who went on the excursion is 45.
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