Banking Exams Exam > Banking Exams Questions > The average weight of three men J, K and L is...
Start Learning for Free
The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.
- a)84 kg
- b)88 kg
- c)86 kg
- d)90 kg
- e)Other than given options
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The average weight of three men J, K and L is 75 kg. Another man M joi...
Total weight of J, K and L = 75 × 3 = 225 kg
Total weight of J, K, L and M = 78 × 4 = 312 kg
Weight of M = 312 – 225 = 87 kg
Weight of N = 87 – 5 = 82 kg
Total weight of K, L, M & N = 77 × 4 = 308 kg
Total weight of K, L & M = 308 – 82 = 226 kg
Weight of J = weight of (J, K, L and M) – weight of (K,
L and M)
= 312 – 226 = 86 kg
Most Upvoted Answer
The average weight of three men J, K and L is 75 kg. Another man M joi...
The weight of J is 86 kg.
Let's solve the problem step by step:
Step 1: Calculate the total weight of J, K, and L.
Given that the average weight of J, K, and L is 75 kg, we can write the equation:
(J + K + L) / 3 = 75
Step 2: Calculate the total weight of J, K, L, and M.
After M joins the group, the average weight becomes 78 kg. So, we can write the equation:
(J + K + L + M) / 4 = 78
Step 3: Calculate the weight of M.
To find the weight of M, we can rearrange the equation from step 2:
J + K + L + M = 312
Step 4: Calculate the weight of N.
The weight of N is given to be 5 kg less than M. So, we can write the equation:
N = M - 5
Step 5: Calculate the average weight of K, L, M, and N.
After N replaces J, the average weight becomes 77 kg. So, we can write the equation:
(K + L + M + N) / 4 = 77
Step 6: Substitute the values of M and N from step 3 and 4 into the equation from step 5.
(K + L + 312 - 5) / 4 = 77
(K + L + 307) / 4 = 77
K + L + 307 = 308
K + L = 1
Step 7: Substitute the value of K + L from step 6 into the equation from step 1.
(J + 1) / 3 = 75
J + 1 = 225
J = 224
Therefore, the weight of J is 86 kg (option C).
Let's solve the problem step by step:
Step 1: Calculate the total weight of J, K, and L.
Given that the average weight of J, K, and L is 75 kg, we can write the equation:
(J + K + L) / 3 = 75
Step 2: Calculate the total weight of J, K, L, and M.
After M joins the group, the average weight becomes 78 kg. So, we can write the equation:
(J + K + L + M) / 4 = 78
Step 3: Calculate the weight of M.
To find the weight of M, we can rearrange the equation from step 2:
J + K + L + M = 312
Step 4: Calculate the weight of N.
The weight of N is given to be 5 kg less than M. So, we can write the equation:
N = M - 5
Step 5: Calculate the average weight of K, L, M, and N.
After N replaces J, the average weight becomes 77 kg. So, we can write the equation:
(K + L + M + N) / 4 = 77
Step 6: Substitute the values of M and N from step 3 and 4 into the equation from step 5.
(K + L + 312 - 5) / 4 = 77
(K + L + 307) / 4 = 77
K + L + 307 = 308
K + L = 1
Step 7: Substitute the value of K + L from step 6 into the equation from step 1.
(J + 1) / 3 = 75
J + 1 = 225
J = 224
Therefore, the weight of J is 86 kg (option C).
|
Explore Courses for Banking Exams exam
|
|
Similar Banking Exams Doubts
Top Courses for Banking ExamsView all
The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer?
Question Description
The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? for Banking Exams 2025 is part of Banking Exams preparation. The Question and answers have been prepared according to the Banking Exams exam syllabus. Information about The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Banking Exams 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer?.
The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? for Banking Exams 2025 is part of Banking Exams preparation. The Question and answers have been prepared according to the Banking Exams exam syllabus. Information about The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Banking Exams 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer?.
Solutions for The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Banking Exams.
Download more important topics, notes, lectures and mock test series for Banking Exams Exam by signing up for free.
Here you can find the meaning of The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The average weight of three men J, K and L is 75 kg. Another man M joins the group and the average now becomes 78 kg. If another man N whose weight is 5 kg less than that of M, replace J then the average weight of K, L, M and N becomes 77 kg. Find the weight of J.a)84 kgb)88 kgc)86 kgd)90 kge)Other than given optionsCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Banking Exams tests.
|
|
Explore Courses for Banking Exams exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup