A bus leaves Delhi at 7:00 a.m. travelling at 60 k/h. After how many hours should the other bus start to overtake the first bus at 2:00 pm, if it is travelling at 64 km per hour
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A bus leaves Delhi at 7:00 a.m. travelling at 60 k/h. After how many hours should the other bus start to overtake the first bus at 2:00 pm, if it is travelling at 64 km per hour
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Answer:
Step-by-step explanation:
Let’s solve this step by step:
1. First, we need to calculate how far the first bus has traveled by 2:00 pm. The first bus started at 7:00 am and it’s traveling at 60 km/h. So, by 2:00 pm, which is 7 hours later, it has traveled 60 km/h * 7 hours = 420 km.
2. Now, we need to find out when the second bus should start so that it can catch up with the first bus by 2:00 pm. The second bus is traveling at 64 km/h. So, to travel the same 420 km, it would take 420 km / 64 km/h ≈ 6.56 hours.
3. Therefore, the second bus should start around 2:00 pm - 6.56 hours = 7:26 am (approximately) to overtake the first bus at 2:00 pm.
Please note that these calculations assume constant speeds and no delays for either bus. In reality, factors like traffic and road conditions could affect the travel times.