Rank Interchange Problem
Rank Interchange Problem
Rank Interchange Problem: In these type of question the candidate is give the rank of two person from left and right end respectively. Further the candidate is given the position of one person after they interchange their positions. The position of the other person is to be calculated.
Illustration : - In a row Ravi is 22nd from left end and Priya is 23rd from right end. When they interchange their position respectively, then Priya becomes 31st from right end. Then what will be Ravi's position from left interchanging ?
A. 27 B. 28 C. 30 D. 31 E. Either A or B
Answer: B
Solution : - Given
Rank of Ravi from the Left End = 22
Rank of Priya from the Right end = 23
After interchange
Rank of Priya from the Right end = 31
As Priya has occupied the position of Ravi, and we know the rank of Ravi from left end before interchange
So Rank of Priya from the Left End = 22
Total No = Rank of Ravi from left end after interchange + Rank of Priya from right end after interchange - 1.
Then Total No. = 31 + 22 - 1 = 53 - 1= 52
Ravi rank from left after interchange = Total No. - Rank of Ravi from right after interchange + 1.
As Ravi has occupied the position of Priya, and we know the rank of Priya from right end before interchange
So Rank of Ravi after interchange from the Right End = 23
Then, Rank of Ravi from left end after interchange = 52 - 23 + 1 = 29 + 1 = 30
Hence the correct option is C
In a row A is 10th from left end and B is 10th from right end. When they interchange their position respectively, then B becomes 21st from right end. Then what will be A's position from left interchanging ? | |||
| Right Option : C | |||
| View Explanation | |||
In a row Mr Kapoor is 25nd from left end and Mr Gupta is 19th from right end. When they interchange their position respectively, then Mr. Gupta becomes 31st from right end. Then what will be Mr. Kapoor's position from left after interchanging ? | |||
| Right Option : C | |||
| View Explanation | |||
In a row Kanika is 15th from left end and Samira is 10th from right end. When they interchange their position respectively, then Samira becomes 21st from right end. Then what will be Kanika's position from left interchanging ? | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
