1.

7.P and Q are two railway stations, 300 km apart. Usually the train starts from Pat 5 am and reaches Q at 10 am. One day, due to bad weather the train had toreduce its speed by 10kmph. When will the train reach Q?

Answer»

Let actual speed is vv=300/5v=60

Now speed is 60-10=50km/hr

Speed=Distance/time50=300/timetime=300/50=6 hours

It will reach Q at 11am



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