Question
Download Solution PDFIn a class of 60 students, there are 35 boys. The average weight of boys is 42 kg and the average weight of the full class is 46.5 kg. Find the average weight of girls in the class.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
In a class of 60 students, there are 35 boys.
The average weight of boys is 42 kg and the average weight of the full class is 46.5 kg.
Calculation:
The number of girls will be 60 - 35 = 25
The total weight of the boys is
⇒ 42 × 35 = 1470 kg
The total weight of the full class is
⇒ 60 × 46.5 = 2790 kg
The total weight of the girls is
⇒ 2790 - 1470 = 1320 kg
The average weight of girls in the class is
⇒ 1320 / 25 = 52.80 kg
∴ The correct option is 3
Last updated on Jun 13, 2025
-> The SSC CGL Notification 2025 has been released on 9th June 2025 on the official website at ssc.gov.in.
-> The SSC CGL exam registration process is now open and will continue till 4th July 2025, so candidates must fill out the SSC CGL Application Form 2025 before the deadline.
-> This year, the Staff Selection Commission (SSC) has announced approximately 14,582 vacancies for various Group B and C posts across government departments.
-> The SSC CGL Tier 1 exam is scheduled to take place from 13th to 30th August 2025.
-> Aspirants should visit ssc.gov.in 2025 regularly for updates and ensure timely submission of the CGL exam form.
-> Candidates can refer to the CGL syllabus for a better understanding of the exam structure and pattern.
-> The CGL Eligibility is a bachelor’s degree in any discipline.
-> Candidates selected through the SSC CGL exam will receive an attractive salary. Learn more about the SSC CGL Salary Structure.
-> Attempt SSC CGL Free English Mock Test and SSC CGL Current Affairs Mock Test.
-> Candidates should also use the SSC CGL previous year papers for a good revision.