in a race of 800m kaushik gives piyush a start of 200m and then loses | Examsbook

2093

Q: In a race of 800m Kaushik gives Piyush a start of 200m and then loses the race by 20 seconds. What is the speed of Piyush and Kaushik respectively ? If the ratio of respective speeds be 3:2.

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Answer :
Explanation :
Let the speed of Kaushik be Sk and speed of Piyush be Sp and let the time taken by Piyush be t second then, SkSp = 800t+20600t = 23since given ratio t = 20 s Speed of Piyush = Sp = 600/20 = 30 m/s and Speed of Kaushik = 800/40 = 20 m/s

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