The stadion

John can ran around a circular track in 20 seconds and Eddie in 30 seconds. Two seconds after Eddie starts, John starts from the same place in opposite direction. When will they meet?

Correct answer:

t =  11.2 s

Step-by-step explanation:

J=20 s E=30 s v1=s/J v2=s/E  s=s1+s2 s=v1 t+v2 (t+2)  s=s/J t+s/E (t+2)  1=1/J t+1/E (t+2) 1=1/20 t+1/30 (t+2)  5t=56  t=556=11.2  t=556=11.2=11.2 s

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