A) 2 minutes 1 second
B) 1 minutes 39 seconds
C) 1 minute 42 seconds
D) 1 minute 37 seconds
Correct Answer: D
Solution :
No. of seconds Hema took to run the race = 109 seconds = 12 seconds faster than that of Chandni \[\therefore \] The time taken by Chandni to run the race = (109 + 12) seconds = 121 seconds = 2 minutes 1 second (Since 60 seconds = 1 minute.)
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