Mathematics for IGCSE & O level - Number (Section 1 - No. 34)
If a bus leaves a station every 40 minutes and a train leaves the same station every 45 minutes, at what time will they next leave the station together, assuming they both left the station at 7:00 am?
10:00 am
11:00 am
10:15 am
10:30 am
Explanation
The LCM of 40 and 45 represents the interval when they will next leave together. LCM(40, 45) = 360 minutes or 6 hours. Hence, 7:00 am + 6 hours = 1:00 pm
Comments (0)
