CA Foundation · Quantitative Aptitude · Seating Arrangements
In a row of 40 students all facing north, Mohan is 14th from the left end. What is his position from the right end?
Mohan is 27th from the right end. Position from the right equals total number of students plus one minus position from the left, so 40 + 1 - 14 = 27. Simply subtracting 14 from 40 gives 26, which ignores Mohan himself.
- A26th
- B27thCorrect
- C25th
- D28th
Explanation
Position from right = total + 1 - position from left = 40 + 1 - 14 = 27. Choosing 26th comes from subtracting 14 from 40 without adding 1, which forgets that Mohan himself is counted.
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