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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. |
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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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