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in a 10 km race, p and q complete the race in 4 minutes and 5 minutes 20 second respectively. p beats q by |
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Answer» Step-by-step explanation: A. 2.8 km B. 2 km C. 2.5 km D. 3 km View Answer up 1 Down -1 Explanation:- Answer : C Discuss it below : Q TAKES 5 min 20 sec (320 seconds) to run 10 km. Distance covered by Q in 4 mins (240 s) = 10*240/320 = 7.5 km Q COVERS 7.5 km when P completes the race. P beats Q by 2.5 km. Alternatively, using the formula, x=1 km, t1=240s, t2=320s d=(x/t2)(t1-t2) =(10000/320)*80 = 2.5 km |
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