3 Views

Question : The average weight of six persons is 30 kg. If a new person joins this group, then the average weight becomes 28 kg. What is the weight of the new person?

Option 1: 22 kg

Option 2: 14 kg

Option 3: 15 kg

Option 4: 16 kg


Team Careers360 24th Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: 16 kg


Solution : The average weight of 6 persons = 30 kg
So, the sum of the weights of 6 persons = 30 × 6 = 180 kg
When a new person joins this group, then the average weight = 28 kg
The sum of the weights of seven persons = 28 × 7 = 196 kg
So, the weight of the new person = 196 – 180 = 16 kg
Hence, the correct answer is 16 kg.

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books