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1.(c) Given Karan is 17th from last
Rohit is 7 ranks ahead of Karan. Since, the position of Karan is given from the last,
Rohit rank from last is
17 + 7 = 24
Position of Rohit from the start = Total strength of the class + 1 – Position of Rohit from the bottom
= 39 + 1 – 24
2. (b) There are 26 boys and 13 girls
Among 13 girls, 7 girls are above Akruthi. So, the remaining girls should be below her i.e., ( 13 – 8 ) = 5 girls are
Since there are only 7 girls above Akruthi, the remaining 7 places are occupied by boys. So, the remaining
boys will be below Akruthi.
Below Akruthi, there are 39-15 = 24 students. Among those 24 students, the number of boys below Akruthi is
24 – 7 = 17
3.(a) The number of people between Roshan and Jeelani = 48 – ( 14 + 17 ) = 17 person
Now, Aysha is exactly between Roshan and Jeelani.
Therefore, there are 8 persons between Roshan and Aysha.
4.(d) On shifting 4 positions to the left, Kushal is 10th from the left end.
So, initially, he was at 14th position from the left end, which implies that Suraj is at 17th position from the left end.
The position of Suraj from the right end = Total number of boys + 1 – Position of Suraj from left end
= 40 + 1 – 17 = 24
5.(e) To determine the number of people between B and R,
= Total number of people – ( B‟s position + R‟s position ) =25 – ( 18 + 16 ) = – 9
Since the number of people can never be negative. Let us find out the position of B
and R from the other end.
Position of R from L.H.S = Total number of students + 1 – Position of R from R.H.S
= 25 + 1 – 16 = 10
Position of B from the R.H.S
= Total number of students + 1 – Position of B from L.H.S = 25 + 1 – 18 = 8
Number of students between B and R
= Total number of students – ( B’s position + R’s position )
= 25 – ( 10 + 8 )
If we observe the question clearly, we notice that there are two possible cases
In one case, R might be right of M and in another case, R might be left of M.
If R is towards the right side of M, then it will be in 5th position from the right end.
Position of R from L.H.S = 35 + 1 – 5 =31st
If R is towards the left side of M, then it will be on 25th position from the right end.
Position of R from L.H.S = 35 +1 – 25 =11th
Since R can be either 31st or 11th position from the left end. Option (d) is the correct option.
Since Q is 14th from left; there is no chance for M to be left of Q.
M’s position from the left end = 14 + 16 + 1 = 31st
M’s position from the right end
= Total no of children + 1 – M‟s position from the left end
= 40 + 1 – 31
8.(b) As per the given conditions, there are two possible arrangements as shown below:
The number of people in the queue = 21 + 1 + 5 +1 +8 + 3 =39
The number of people in the queue =3 + 1 +2 + 1 + 21 = 28
Clearly, for minimum number of people, we should consider Case-2.
9.(e) After shifting the position of Sheila, her position is 18th from the right end.
So, initially, Sheila was 15th from the right end. Saahil is 5th to the left of Sheila.
Total number of children in a row = 15 + 15 + 4 = 34
Pink is 21st from the right end and Rinku is 10th to the left of Pink
So, Rinku is 31st (i.e., 21 + 10 ) from the right end.
Miku is 17th from the left end and 4th to the right of Rinku.
So, Rinku‟s position from the left end with respect to Miku = 14th
Total number of boys = Position of Rinku from R.H.S + Position of Rinku from L.H.S – 1
= 31 + 14 – 1
Total number of girls in row = Position of Unita from L.H.S + Position of Unita from R.H.S – 1
= 11 + 11 -1
Priya‟s rank from bottom = (35 – 7) + 1 = 28 + 1 = 29
Divya‟s rank from bottom = (35 – 12) + 1 = 23 + 1 = 24
Hence, Priya and Divya‟s ranks are 29 and 24th
The middle position out of 31 boys is 16
Hence, Prabu‟s original position from left end is, 16 – 3 = 13
Hence, the original position of Prabu from right end is,
= (31 – 13) + 1 = 18 + 1 = 19th
D > B > C > A
Hence, D is tallest amongst all.
D > C > A > E > B
Hence, both C and A are older than E but
younger than D