A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is:
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6
Hi there !!
Time = Distance/speed
Time 1= 160/64
Time 2 = 160 /80
Total time = 160/64 + 160/80
lcm of 64 and 80 = 320
800/320 + 640 / 320
1440 / 320hr = 9/2 hrs
Speed = distance / time
distance = 320 km
time = 9/2 hr
distance = speed x time
320 = speed x 9/2 hr
speed = 320 x 2/9
= 71.11 km per hour
Time = Distance/speed
Time 1= 160/64
Time 2 = 160 /80
Total time = 160/64 + 160/80
lcm of 64 and 80 = 320
800/320 + 640 / 320
1440 / 320hr = 9/2 hrs
Speed = distance / time
distance = 320 km
time = 9/2 hr
distance = speed x time
320 = speed x 9/2 hr
speed = 320 x 2/9
= 71.11 km per hour
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0
Answer:
Hiii friend!!
SPEED = 320 x 2/9
= 71.11 km per hours
Explanation:
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