A man cycles at the speed of 8
km/hr and reaches office at 11
am and when he cycles at the
speed of 12 km/hr, he reaches
office at 9 am. At what speed
should he cycle so that he
reaches his office at 10 am?
Answers
Answered by
0
Answer:
at 7 am please make me brainlist
Answered by
0
Answer:
Step-by-step explanFirst speed = 8 km/hr
Second speed = 12 km/hr
Starting time will be same in both conditions.
Distance travelled by first speed in 2 hours
Time take by second speed to travel distance 16 km
Time=Distance /(2ndSpeed − 1stSpeed)
Time=16/(12−8)
Time=4 hrs
Total time taken by second speed = 4 hrs
Total distance = 4 × 12 = 48 km
Starting time to travel at second speed :
= 9 am - 4 hrs = 5 am
Total time taken by third speed to reach the office :
= 10 am - 5 am = 5 hrs
3rd Speed=Total Distance/Time
3rd Speed=48/5
3rd Speed=9.6 km/hr
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