SOLUTION: It takes rita 15mins to walk 1km.how long will it take her to walk 3km

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Question 819882: It takes rita 15mins to walk 1km.how long will it take her to walk 3km
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi,

It takes rita 15mins to walk 1km.

how long green%28X%29  will it take her to walk 3km

 %2815min%29%2F%281km%29+=+X%2F%283km%29       |Cross Multiplying to solve

           X = 45min   0r 3⁄4 hr