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A bus travelling at 55 km/h completes a journey in 8 hours. At what speed will it have to cover the same distance in 20 hours?

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  1. 22 km/h
  2. 15 km/h
  3. 32 km/h
  4. 30 km/h

Answer (Detailed Solution Below)

Option 1 : 22 km/h
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Detailed Solution

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Given:

Speed = 55 km/h

Time = 8 hours

Formula used:

Distance = Speed × Time

New Time = 20 hours

New Speed = Distance / New Time

Calculation:

Distance = 55 km/h × 8 hours

⇒ Distance = 440 km

New Speed = 440 km / 20 hours

⇒ New Speed = 22 km/h

∴ The correct answer is option 1.

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