Multiple choice

Which information are necessary to answer the questions asked- Shatabdi Express leaves Allahabad at 8:00 am for Delhi. At what time will it reach Delhi? Statement I : For the first 100 km it travels at the speed of 250 km per hour and maintains the same speed during the entire journey. Statement II : It has 5 stoppages in between Delhi and Allahabad. Statement III : Before every stoppages, it covers a same distance of 240 km

  1. All three together are not sufficient

  2. All three together are sufficient

  3. Any two are sufficient

  4. II and (I or III) are sufficient

  5. None of these
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A Correct answer
Explanation

We need total distance Allahabad to Delhi. Statement III says 5 equal segments of 240 km each, so total = 1200 km. Statement I gives speed = 250 km/h. Time = distance/speed = 1200/250 = 4.8 hours. Arrival = 8 AM + 4.8 hours ≈ 12:48 PM. But wait - Statement II says 5 stoppages, but we don't know stoppage durations. Without stoppage time, we can't find exact arrival time. So all three are insufficient.

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