PlacementPrepIn a row of students, Meera is 13th from the left and 36th from the right. How many students are in the row?
Solution
Total = position from left + position from right − 1 = 13 + 36 − 1 = 48.
Answer: (C) 48
Logical Reasoning · Arrangements
Ranking and Order: placement practice questions
30 moderate questions in the pattern of campus placement tests. Pick an option to check your answer, then open the step-by-step solution.
In a row of 34 children, Ravi is 5th from the left and Mohan is 9th from the right. How many children are between them?
Solution
Ravi's position from the right = 34 − 5 + 1 = 30.
Children between = 30 − 9 − 1 = 20.
Answer: (B) 20
In a row, A is 11th from the left and B is 18th from the right. When they swap places, A becomes 22th from the left. How many people are in the row?
Solution
After swapping, A is in B's old place, which is 22th from the left and 18th from the right.
Total = 22 + 18 − 1 = 39.
Answer: (B) 39
In a class, Neha is 25th from the top and 20th from the bottom among the students who passed. 5 students failed and 1 was absent. How many students passed?
Solution
Students who passed = 25 + 20 − 1 = 44. (The failed and absent students are not in this ranking.)
Answer: (C) 44
In a row of students, Priya is 10th from the left and 39th from the right. How many students are in the row?
Solution
Total = position from left + position from right − 1 = 10 + 39 − 1 = 48.
Answer: (D) 48
In a row, A is 15th from the left and B is 21th from the right. When they swap places, A becomes 25th from the left. How many people are in the row?
Solution
After swapping, A is in B's old place, which is 25th from the left and 21th from the right.
Total = 25 + 21 − 1 = 45.
Answer: (D) 45
In a class, Neha is 14th from the top and 37th from the bottom among the students who passed. 6 students failed and 2 were absent. How many students passed?
Solution
Students who passed = 14 + 37 − 1 = 50. (The failed and absent students are not in this ranking.)
Answer: (D) 50
In a row of students, Meera is 32th from the left and 11th from the right. How many students are in the row?
Solution
Total = position from left + position from right − 1 = 32 + 11 − 1 = 42.
Answer: (C) 42
In a row of 45 children, Ravi is 19th from the left and Mohan is 7th from the right. How many children are between them?
Solution
Ravi's position from the right = 45 − 19 + 1 = 27.
Children between = 27 − 7 − 1 = 19.
Answer: (B) 19
In a row, A is 13th from the left and B is 21th from the right. When they swap places, A becomes 20th from the left. How many people are in the row?
Solution
After swapping, A is in B's old place, which is 20th from the left and 21th from the right.
Total = 20 + 21 − 1 = 40.
Answer: (B) 40
In a class, Neha is 11th from the top and 27th from the bottom among the students who passed. 2 students failed and 3 were absent. How many students passed?
Solution
Students who passed = 11 + 27 − 1 = 37. (The failed and absent students are not in this ranking.)
Answer: (A) 37
In a row of students, Arun is 32th from the left and 24th from the right. How many students are in the row?
Solution
Total = position from left + position from right − 1 = 32 + 24 − 1 = 55.
Answer: (B) 55
In a row, A is 15th from the left and B is 20th from the right. When they swap places, A becomes 19th from the left. How many people are in the row?
Solution
After swapping, A is in B's old place, which is 19th from the left and 20th from the right.
Total = 19 + 20 − 1 = 38.
Answer: (B) 38
In a class, Neha is 17th from the top and 32th from the bottom among the students who passed. 2 students failed and 4 were absent. How many students passed?
Solution
Students who passed = 17 + 32 − 1 = 48. (The failed and absent students are not in this ranking.)
Answer: (C) 48
In a row of students, Sanjay is 40th from the left and 18th from the right. How many students are in the row?
Solution
Total = position from left + position from right − 1 = 40 + 18 − 1 = 57.
Answer: (A) 57
In a row of 34 children, Ravi is 13th from the left and Mohan is 17th from the right. How many children are between them?
Solution
Ravi's position from the right = 34 − 13 + 1 = 22.
Children between = 22 − 17 − 1 = 4.
Answer: (B) 4
In a row, A is 6th from the left and B is 22th from the right. When they swap places, A becomes 18th from the left. How many people are in the row?
Solution
After swapping, A is in B's old place, which is 18th from the left and 22th from the right.
Total = 18 + 22 − 1 = 39.
Answer: (B) 39
In a class, Neha is 17th from the top and 30th from the bottom among the students who passed. 6 students failed and 1 was absent. How many students passed?
Solution
Students who passed = 17 + 30 − 1 = 46. (The failed and absent students are not in this ranking.)
Answer: (B) 46
In a row of students, Deepak is 13th from the left and 18th from the right. How many students are in the row?
Solution
Total = position from left + position from right − 1 = 13 + 18 − 1 = 30.
Answer: (C) 30
In a row of 38 children, Ravi is 8th from the left and Mohan is 5th from the right. How many children are between them?
Solution
Ravi's position from the right = 38 − 8 + 1 = 31.
Children between = 31 − 5 − 1 = 25.
Answer: (D) 25
In a row, A is 8th from the left and B is 23th from the right. When they swap places, A becomes 12th from the left. How many people are in the row?
Solution
After swapping, A is in B's old place, which is 12th from the left and 23th from the right.
Total = 12 + 23 − 1 = 34.
Answer: (C) 34
In a class, Neha is 21th from the top and 25th from the bottom among the students who passed. 4 students failed and 4 were absent. How many students passed?
Solution
Students who passed = 21 + 25 − 1 = 45. (The failed and absent students are not in this ranking.)
Answer: (C) 45
In a row of students, Tanvi is 22th from the left and 32th from the right. How many students are in the row?
Solution
Total = position from left + position from right − 1 = 22 + 32 − 1 = 53.
Answer: (A) 53
In a row of 43 children, Ravi is 12th from the left and Mohan is 6th from the right. How many children are between them?
Solution
Ravi's position from the right = 43 − 12 + 1 = 32.
Children between = 32 − 6 − 1 = 25.
Answer: (D) 25
In a row, A is 8th from the left and B is 19th from the right. When they swap places, A becomes 13th from the left. How many people are in the row?
Solution
After swapping, A is in B's old place, which is 13th from the left and 19th from the right.
Total = 13 + 19 − 1 = 31.
Answer: (B) 31
In a class, Neha is 23th from the top and 37th from the bottom among the students who passed. 7 students failed and 4 were absent. How many students passed?
Solution
Students who passed = 23 + 37 − 1 = 59. (The failed and absent students are not in this ranking.)
Answer: (B) 59
In a row of 54 children, Ravi is 7th from the left and Mohan is 8th from the right. How many children are between them?
Solution
Ravi's position from the right = 54 − 7 + 1 = 48.
Children between = 48 − 8 − 1 = 39.
Answer: (D) 39
In a row of 41 children, Ravi is 12th from the left and Mohan is 19th from the right. How many children are between them?
Solution
Ravi's position from the right = 41 − 12 + 1 = 30.
Children between = 30 − 19 − 1 = 10.
Answer: (B) 10
Among five friends, B is taller than F. C is taller than D. D is taller than B. A is taller than D. A is taller than C. Who is third in height?
Solution
Combining the clues, the order from tallest to shortest is A > C > D > B > F.
So the answer is D.
Answer: (D) D
Among five friends, F is taller than C. B is taller than A. C is taller than B. C is taller than E. E is taller than B. Who is the shortest?
Solution
Combining the clues, the order from tallest to shortest is F > C > E > B > A.
So the answer is A.
Answer: (C) A
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