Finding Middle Value Simple Case


 
 
Concept Explanation
 

Finding Middle Value Simple Case

Finding Middle Value ( Simple Case): In these type of questions we are supposed to find the number of persons between to given persons.  The values required to find the mid number :

  • Rank of one person from one end.
  • Rank of another person from another end.
  • Total number.
  • Formula to find Mid Number (Simple Case): When total number is more than the addition of rank from both the end. Then such question is based as Mid number (Simple Case).

    Mid No. (Simple Case) = = Total No. - (Rank of one person from one end + Rank of another person from another end).

    Illustration: In a row of 51 girls, A is 15th from right end and B is 17th from left end. Then find how many girls are in between A and B ?

    A. 19           B. 22            C. 25            D.  23             E. 30

    Answer: A

    Solution : Given - Rank of A from right = 15

    Rank of B from left = 17

    Total number of girls = 521

    To Find : - How may girls are in between A & B ? Here, Total Number > Rank from Right + Rank from left.

    Therefore it is a simple case Mid Number Question.

    Formula : - Mid no. = Total no. - (Rank of A from Right + Rank of B from left)

    Mid Number = 51 - (15 + 17)

    Rightarrow     51- 32

    Rightarrow     19

    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    In a row of 30 girls, A is 8th from right end and B is 15th from left end. Then find how many girls are in between A and B ?

    Right Option : B
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    Explanation
    Question : 2

    In a row of 59 girls, Seema 15th from right end and Salma is 17th from left end. Then find how many girls are in between Seema and Salma ?

    Right Option : A
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    Explanation
    Question : 3

    For the march past in a school 30 girls are standing in a row, Seema is 5th from right end and Raveena is 15th from left end. Then find how many girls are in between Seema and Raveena ?

    Right Option : B
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    Explanation
     
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