Rohit covers a distance of 140 m with the speed of 75 km/h. How much extra time
will he take to cover a distance of 400 m with the same speed?
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Answered by
12
Answer:
19.5 h
Step-by-step explanation:
In first case,
d= 140m = 0.14km
d= s×t
0.14km= 75km/h × t
t = 14/100 km × 75 km/h
t = 21/2h
t = 10.5h
In second case,
d= s× t
400/1000km = 75 km/h × t
0.4km = 75 km/h × t
t = 0.4/75h
t = 4/10 × 75h
t= 30 h
hence, extra time taken = 30 h - 10.5 h
= 19.5 h
Answered by
12
Answer:
19.5 HR. your answer dear in given picture.mark me as a branliest.
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