plz answer fast Share with your friends Share 0 Brijendra Pal answered this Dear Student, The LCM of 4,6,8,9,10 seconds is 4 = 2×26= 2×38= 2×2×29 = 3×310 = 2×5So LCM =360 So well will toll together after 360 second or 6 minute. Regards 0 View Full Answer