Four friends step off together from the same spot. Their steps measure 18 cm, 36 cm, 45 cm and 72 cm respectively. What is the minimum distance each should cover so that all can cover distance in complete steps?
A280 cm
B340 cm
C360 cm
D420 cm
Four friends step off together from the same spot. Their steps measure 18 cm, 36 cm, 45 cm and 72 cm respectively. What is the minimum distance each should cover so that all can cover distance in complete steps?
A280 cm
B340 cm
C360 cm
D420 cm