Question

Beginning at 8:A.M. tours of the national capital and the white house begin at the hour egancy Tours for the National Cabitol leave every 15 minutes Tours for the white house leave 20 minutes How often do the tours leave at the same time ?

Answer 1

AnswEr:-

Given that,

Tours for the National Capitol leave every 15 minutes .

Tours for the White House leave every 20 minutes .

Time interval at which Tour will leave at same time :

let us find  LCM of 15 & 20  

=> 15 = 3 * 5

=> 20 = 4 * 5

LCM = 3 * 4 * 5

= 60 mins

 Hence, Every 60 Mins Tours Leave at the Same time

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