Finding Middle Value Overlap Case
Finding Middle Value Overlap Case
Finding Middle Value ( Overlap Case): In these type of questions we are supposed to find the number of persons between to given persons. Overlap case is a situation when Total Number is less than the sum of the rank from both the end. Values required to find the mid number :
Formula to Find Mid Number (Overlap Case) : When Total Number is less than the addition of rank from both the end. Then such question is based on Mid Number (Overlap Case).
Mid No. (Overlap Case) = (Rank of one person from one end + Rank of another person from another end) - (Total Number + 2).
Illustration: In a row of 27 boys, X is 17th from left end and Y is 13th from right end. Find the number of boys are in between X and Y?
A. 1 B. 2 C. 3 D. 4 E. 5
Answer: A
Solution : - Given : Total Number = 27
Rank of X from left end = 17
Rank of Y from right end = 13
To find : How many boys are in between X and Y.
Formula is :
Mid No. = (Rank of X from left end + Rank of Y from right end) - (Total No. + 2)
Mid No. = (17 + 13) - (27 + 2)
30 - 29 = 1
Hence The correct Option is A
In a que at the railway station ticket counter 22 people are standing, Mr Kumar is 20th from left end and Mr. Gupta is 14th from right end. Find the number of persons between Mr Kumar and Mr Gupta ? | |||
| Right Option : B | |||
| View Explanation | |||
Along the road side 25 tree are planted in a row, The neem tree is 17th from left end and The mango tree is 13th from right end. Find the number of tree between neem tree and mango tree? | |||
| Right Option : B | |||
| View Explanation | |||
In a row of 15 boys, X is 10th from left end and Y is 14th from right end. Find the number of boys are in between X and Y ? | |||
| Right Option : C | |||
| View Explanation | |||
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