Question

Answer the question no.4 of class 8​

Answer 1

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Answer 2

Answer:14292.86 seconds.

Step-by-step explanation:Given---

  Speed = 50 2/5 km/hr.

             = 252/5 km/hr    [ Converting into simple Faction]

             = (252/5) × 5/18 [ Converting into m/s.]

             = 14 m/s.

Distance = 200 km + 100 m

              = 200000m  + 100 m

              =  200100 m

Using the Formula,

  Speed = Distance/Time

Time = Distance/Speed

         = 200100/14

         = 14292.86 seconds.