A man, who has to walk 11 km, finds that in 30 minutes he has travelled two ninth of the remaining distance. What is his speed in km/h? (A) 4 (B) 4.5 (C) 4.8 (D) 4.2
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Step 1: Let the total distance the man has to walk be \( D = 11 \) km. Show more…
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