in a row of 50 students, Rahul is 13th from the left and Kajal is 25th from the right. How many students are sitting between Rahul and Kajal?
12
This is a linear-arrangement problem in which two people are described from opposite ends of a single row, and we must count how many students sit strictly between them.
The row holds a total of \(50\) students, and to compare the two positions we need both of them measured from the same end.
Rahul is 13th from the left, so on a left-to-right scale his position number is simply \(13\).
Kajal is 25th from the right, and to place her on the same left-to-right scale we use position-from-left = total − position-from-right + 1, giving \(50 - 25 + 1 = 26\).
So on the common left-hand scale Rahul stands at seat 13 and Kajal at seat 26, both measured from the same end.
Since the two seats, 13 and 26, are counted the same way, the students strictly between them occupy seats 14 through 25.
The count of those in-between seats is the gap minus one: \(26 - 13 - 1 = 12\).
The concept is converting a right-end rank into a left-end rank before subtracting, so the number of students sitting between Rahul and Kajal is 12.
Similar Questions
In a row of 30 students, Ravi is 12th from the left and Priya is 8th from the right. How many students are sitting between Ravi and Priya?
In a row of 80 students, if Arun is 23rd from the left and there are 18 students between Arun and Bharat, what is Bharat's position from the right end? (Bharat is to the right of Arun)
Radius of 5 circles A, B, C, D and E is compared. Radius of no two circles is same. Radius of C is more than B but less than D. Radius of E is the maximum. Radius of B is 14 cm and radius of A is 11 cm. What will be the possible radius (in cm) of circle C?
Instructions: For the question below, analyse the given information and conditions. Based on your understanding of relative positions and rankings, determine the correct order or position and answer the question.
Scenario: In a row of people, Peter is 12th from the left and John is 16th from the right. There are 4 people between them.
Question: What is the total number of people in the row if they are not overlapping?
Five friends Avi, Ani, Asif, Anu and Asa were born in different consecutive years starting from 2001. Anu was neither born in 2002 nor in 2005. Avi is the oldest of all. Ani is younger than Asa. Asif was born in a leap year. Who was born in 2002 ?
There are 48 soldiers in a parade line. Soldier M is 23rd from the front and Soldier N is 13th from the back. Find the number of soldiers between M and N.
In a rangoli, 12 lamps are in a line. A green lamp is 4th from left. How many lamps are to its right?
Thickness of 5 tyres R, S, T, U and W is compared. Thickness of no two tyres is same. R is thicker than T but not than W. S is thicker than U and U is thicker than W. If thickness of tyre R is 50, then what is the possible thickness of tyre T?
Length of 6 rectangles A, B, C, D, E and F is compared. Length of no two rectangles is same. Length of A is second longest. Length of F is more than C and B but less than D and E. Length of E is not the maximum. Length of how many rectangles is more than F?
In a college students' list, Akash is 15th from the top and 20th from the bottom. How many students are there in the list?
Important Questions from Ordering and Ranking
A medical representative plans to visit each of six hospitals — A, B, C, D, E and F — exactly once during the course of one day. He is setting up his schedule for the day according to the following conditions:
i. He must visit A before B and E.
ii. He must visit B before D.
iii. The third hospital he visits must be C.
Which of the following could be the possible order in which the medical representative visits the six hospitals?Sonam is older than Renu. Komal is younger than Renu. Priya is older than Sonam. Who is the eldest of them?
Five men P, Q, R, S and T are reading a newspaper. The one who reads it first, gives it to T. The one who reads it last, had taken it from R. Q is not the first or last one to read it. There were two readers between P and R. Who is the third one to have read the newspaper?
P, Q, R, S, T and U are standing in a queue. Q is just ahead of P. S is just behind T. U is NOT near R, who is separated from Q by two persons. Who is standing at the front of the queue?
Five students took part in a cycling competition. Robert finished before Monish but behind Gunjan. Anil finished before Sunil but behind Monish.
Who won the competition?
