1.

A man covers first 60 km of his journey at 30 km hr-1 and remaining 50 kmat 20 km hr-1.Find : (i) the total time taken,(ii) the total time taken,his average speed during the whole journey.​

Answer»

Step-by-step explanation:

60÷30=2

hence ACCORDING to the spped the first 60 KM REQD 2hrs

50÷20=2.5hrs

hence the total TIME taken is 5.5hrs



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