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Jayant is walking at speed of 4 km/h and covers a certain distance in 5 hours. What should be his speed if he covers certain distance in 1 hours 30 minutes?


1. 26.5 km/h
2. 22.8 km/h
3. 13.33 km/h
4. 27.8 km/h

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Correct Answer - Option 3 : 13.33 km/h

Given:

Initial speed = 4km/ h

Intial time = 5 hours

Time reduced to = 1 hours 30 minutes

Formula used:

Speed = Distance/ Time

m/ s = 5/ 18 km/hr

Calculation:

Distance covered = 4 × 5

⇒ Distance covered = 20 km

⇒ Speed needed = 20/ 1.5

⇒ Speed needed = 20 × 10/ 15

⇒ Speed needed ≈ 13.33 km/ h

speed needed is 13.33 km/h

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