File and Input/Output System Q.37

37Disk requests come to a disk driver for cylinders 10, 22, 20, 2, 40, 6 and 38, in that order at a time when the disk drive is reading from cylinder 20. The seek time is 6 ms per cylinder.
If the scheduling algorithm is the closest cylinder next, then the total seek time will be

Option : A
Explanation :

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