UPSC Exam  >  UPSC Questions  >  The average weight of 3 men A, B, and C is 84... Start Learning for Free
The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-?
Most Upvoted Answer
The average weight of 3 men A, B, and C is 84 kg. Another man D joins ...
Given Information:
- Average weight of men A, B, and C = 84 kg
- Average weight of men B, C, and D = 80 kg
- Weight of man E = Weight of D + 3 kg

Solution:

Finding individual weights:
Let the weights of A, B, and C be a, b, and c respectively.
Since the average weight of A, B, and C is 84 kg:
a + b + c = 84 * 3 = 252 kg
When man D joins the group, the average weight becomes 80 kg:
(a + b + c + d) / 4 = 80
252 + d = 320
d = 68 kg
The weight of man E:
e = d + 3
e = 68 + 3
e = 71 kg

Calculating new average:
Now, A is replaced by E. So, the new group consists of B, C, D, and E.
The sum of their weights:
b + c + d + e = b + c + 68 + 71
= (b + c + 68 + 71) * 4 / 4
= (252 + 139) / 4
= 391 / 4
= 97.75 kg
Therefore, the new average weight of B, C, D, and E is 97.75 kg.
Explore Courses for UPSC exam

Top Courses for UPSC

The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-?
Question Description
The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-?.
Solutions for The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-? defined & explained in the simplest way possible. Besides giving the explanation of The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-?, a detailed solution for The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-? has been provided alongside types of The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-? theory, EduRev gives you an ample number of questions to practice The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average weight becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replace A then the average weight of B, C, D, and E becomes-? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam

Top Courses for UPSC

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev