If Hari is ready to board a train at 8:05 am from station M, then when is the earliest that he can reach station N?
Explanation:
A train leaves M every 10 minutes starting at 6 am.
If Hari reaches M at 8:05, he can catch the train that leaves at 8:10 am.
Time taken by Hari to reach N:
There are total 20 stations from M till N, hence total travelling time = 20 × 2 = 40 minutes.
There are 2 junctions, hence stoppage time = 2 × 2 = 4 mins
There are 17 other stations, hence stoppage time = 17 × 1 = 17 mins
∴ Total time taken = 40 + 4 + 17 = 61 mins.
∴ Hari reaches N at 8:10 am + 61 minutes = 9:11 am.
Hence, option (d).
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