two busses both leave from the same station the blue line leaves every 15 minutes and the red line leaves every 20 minutes if both busses leave the station at 9:15 AM what time will it be when both busses leave at the same time again
5 answers
The least common multiple of 15 and 20 is 60. Take it from there.
They will both leave at 10:00
Need help right now
60 is the least common multiple of 15 and 20 so 9:15 plus an hour is = to 10:15.
Here is your answer
Take out the LCM
SO first DO THE PRIME FACTORISATION OF 10,15 and 24
10=2×5
15= 3×5
24=2×2×2×3
LCM= 2×2×2×3×5
=120min
Trian will depart on all three lines at the same time after every 120 minutes or 2hours
Take out the LCM
SO first DO THE PRIME FACTORISATION OF 10,15 and 24
10=2×5
15= 3×5
24=2×2×2×3
LCM= 2×2×2×3×5
=120min
Trian will depart on all three lines at the same time after every 120 minutes or 2hours