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  • In a kilometre race a beats b by 1 minute and Beats C by 375m if b beats c by 30 seconds the time taken by C to run 1 kilometre is?

In a kilometre race a beats b by 1 minute and Beats C by 375m if b beats c by 30 seconds the time taken by C to run 1 kilometre is?

Answers (2)

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According;to;question;A;beats;B;by;1;min.(60;sec);and;B;beats;C;by;30;sec \*distance;between;A;and;C;is;375 \*So,;A;beats;C;by;60+30=90;sec\* herefore speed;of;C=frac37590=4.167;m;per;sec\* total;distance=1;km=1000;m\* time;taken;by;C;to;complete;race=frac10004.167=239.98;sec.\* herefore time;taken;by;C;to;complete;the;race;of;1;km;is;239.98;seconds.

Posted by

Deependra Verma

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Let A complete the 1km race in x secondsThen B will be x+60 seconds and thats of C completes (x/625)×1000 seconds.

B beats C by 30 seconds, so x+60+30=1000x/625.    x+90=1000x/625. After simplify x=56250/375=450/3

1000×450/3×625=240 seconds

 

 

 

 

 

 

 

 

 

 

Posted by

Pradeep Ranjan Bal

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