Car a leaves delhi at a certain time, after 5 hours car b leaves delhi in the same direction as of a. Speed of car a is 20km/hr and speed of car b is 40km/hr. In how much time car b will be 20km ahead of car a?
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3
Answer:
here is your answer 5hr.thank you
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0
Answer:
6
Explanation:
Explanation :
20 =40*(t-5) – 20*t
T = 11
11-5 = 6
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