question_answer

In a morning walk, three persons step off together, their steps measure 80 cm, 85 cm and 90 cm respectively. What is the minimum distance each should walk so that he can cover the distance in complete steps?

A) 122 m 40 cm    

B) 120 m

C) 121 m 42 cm    

D) 129 m 50 cm

E) None of these