Question

Ritu cycles to her school at an average speed of 12 km per hour and takes 20 minutes to reach her school. If she wants to reach her school in 12 minutes, her average speed should be.
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Answer 1

Answer:

a man rows upstream in still water at 3 km/h and back to the same place at 5 km/h he takes 48 minutes altogether. how far upstream did he go?Dan invests £22000 into a Saving accounts.The bank gives a 5% compound interest for the first 3 Years and 4% .Thereafter. How much will Dan have after 7 Years to the nearest pounda man rows upstream in still water at 3 km/h and back to the same place at 5 km/h he takes 48 minutes altogether. how far upstream did he go?

Step-by-step explanation:

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Answer 2

Answer:

time = 20 mins = 1/3 hours. distance = speed × time = 12 × 1/3 = 4km.