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 40 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 ?

    Right Option : C
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    Explanation
    Question : 2

    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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    Explanation
    Question : 3

    In a row of 30 students, A is 5th from right end and B is 10th from left end. Then find how many girls are in between A and B ?

    Right Option : D
    View Explanation
    Explanation
     
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