Question
An express train travelled at an average speed of 100 km / hr, stopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point ?
Answer: Option A
TIME TAKEN TO COVER 600 KM = ( 600/100 ) HRS = 6 HRS. NUMBER OF STOPPAGES = ( 600/75 – 1 ) = 7 TOTAL TIME OF STOPPAGE = (3 X 7) MIN = 21 MIN. HENCE, TOTAL TIME TAKEN = 6 HRS 21 MIN.
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TIME TAKEN TO COVER 600 KM = ( 600/100 ) HRS = 6 HRS. NUMBER OF STOPPAGES = ( 600/75 – 1 ) = 7 TOTAL TIME OF STOPPAGE = (3 X 7) MIN = 21 MIN. HENCE, TOTAL TIME TAKEN = 6 HRS 21 MIN.
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