How lond does it take harry to go 0.7 miles if he can run 12 miles in 6 minutes

Harry will take 21 seconds.

Explanation:

Speed of Harry =

Since, Harry covers 12 miles in 6 minutes,

Then the speed of Harry =

                                          = 2 miles per minute

If he covers 0.7 miles then time taken by him will be,

Time taken =

                   =

                   = 0.35 minutes

                   ≈ 0.35 × 60 seconds

                   = 21 seconds

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