Question

In the swimming pool to complete one round ; Rohit takes 45 seconds , Rahul takes 90 seconds and Raj takes 18 seconds. They started swimming at the same time and from the same place. After how many seconds they will come together at the starting place?

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Answer 1

Rohit= 45 sec

Rahul=90 sec

Raj=18 sec

Rohit=45*4=180

Rahul = 90*2=180

Raj=18*10=180

Therefore, three of them will take 180 sec or 3 min to reach same place