1.

3. A goods train 400 m long is travelling at a speed of 45 km/h.train 450 m long standing at the platform?4.) Sarthak takes 80 steps per minute, if the length of each step is 40 cm, find his speed in km/h.3of his usual speed and reaches his home 10 minutes late, find the usual time taken by11​

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ANSWER:

80 into 11 880 is answer he



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