Question : Direction: In a row in the East-West direction, Dipika is in the 11th position from the West and Sudesh is in the 15th position from the East end. If they exchange their positions, Sudesh will be in the 9th position from the East end. How many people are there in the row?
Option 1: 16
Option 2: 19
Option 3: 20
Option 4: 24
Correct Answer: 19
Solution : Dipika's position = 11th from the West end.
Sudesh's position = 15th from the East end.
After interchanging their positions,
Sudesh's current position = 9th from the East end.
So, the total number of persons in the row = Dipika's position + Sudesh's current position – 1 = 11 + 9 – 1
Therefore, the total number of persons in the row = 20 –1 = 19 .
Hence, the second option is correct.
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