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

    Along a road side there are 20 trees in a row, The mango tree  is 5th from right end and neem tree is 10th from left end. Then find How many trees are in between mango tree and neem tree?

    Right Option : A
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    Question : 2

    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
    Question : 3

    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
     
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