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a train runs at 80kmph for the first 40 km and the next 30 km at 60kmph fimd the average speed?

what is railway

how can i select my language?

how can i select my language

The average score of 42 students in a test is 69. The ratio of the number of boys to that of girls is 10 : 11. The average score of the boys is 20% more than that of the girls. The average score of the boys

How many computer based examinations will be there for graduation and above level post

india first pm

cs v

sir till when can we attempt dashcat 1?

Why I am not able to access to sectional test and also many sections