JEE Exam  >  JEE Questions  >  A group of 10 items has mean 6. If the mean o... Start Learning for Free
A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items is
  • a)
    5.5
  • b)
    5.0
  • c)
    6.5
  • d)
    4.5
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A group of 10 items has mean 6. If the mean of 4 of these items is 7.5...
Total of 10 items = 6 x 10 =60
Total of 4 items = 4 x 7.5 =30
=> Total of remaining 6 items = 60−30 =30
Mean = 306 =5
Ans : (B)
View all questions of this test
Explore Courses for JEE exam
A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer?
Question Description
A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer?.
Solutions for A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A group of 10 items has mean 6. If the mean of 4 of these items is 7.5, then the mean of the remaining items isa)5.5b)5.0c)6.5d)4.5Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam
Signup to solve all Doubts
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev