A gentleman starts at 7 km/hr to go to his
native place. A messenger started 30 min
later, follows him and overtakes him after he
has gone over 17 12 km. At what rate did the
messenger follow the gentleman?
Answers
Answered by
0
Answer: Speed of messenger is 7.014 km/hr
Step-by-step explanation:
Speed of gentleman = 7km/hr
Distance travelled by gentleman before messenger overtakes = 1712 km
Time for which gentleman was ahead = Distance ÷ Speed
Time for which gentleman was ahead = 1712/7 hr
Time for which messenger travelled = 1712/7 hr - 30 min
Time for which messenger travelled = 1712/7 hr - 1/2 hr
Time for which messenger travelled = 3417/14 hr
Distance travelled by messenger = Distance travelled by gentleman
Distance travelled by messenger = 1712 km
Speed of messenger = Distance/Time
Speed of messenger = 1712/(3417/14 ) km/hr
Speed of messenger = 23968/3417 km/hr = 7.014 km/hr
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Answered by
0
Answer:
explanation:
answer is 8 3/4 or 8.75
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