Asked by Bodhi

A bus service center has 2 feed services that start together at 8 a.m. Bus A leaves at 15 minutes interval, while bus B leaves at 20 minutes interval. On a particular day , how many times do both services leave together from 8 a.m. to 11 a.m.?
Answered by Scott
the LCM for 15 and 20 is 60

every 60 minutes
Answered by Bhupen pegu
Maths
Answered by Mohd shahil
Ans 3
Lcm of 15,20 =60
Different between time 8am to 11am = 3 so 60*3=180 by 60 = 3
Answered by Amit
4 times they start together including its starting time. that means 8:00 AM, 9:00 AM, 10:00 AM and 11:00 AM .

All timings come between 8:00 AM to 11:00 AM
Answered by Anshika mishra
Matchstick questions answers
Answered by Anshika mishra
15 and 20 LCM =60 The time 8 a. m. to 11 a. m.
Answered by Riddika Sinha
Here it will be LCM 20and 15 is 60
So the bus will leave after every 60 minute
Answered by Anonymous
Answer is 8:01.
Answered by Anonymous
Lcm of 15 and 20 is 60
Answered by Anonymous
Ghhddhhevrctfrhixuvyyj
Answered by Anonymous
I have no idea wondering about the same question
Answered by Mark Rober
The Bus will leave in 60 minutes its 8 am to 11 am
Answered by Anonymous
Hcf is 5 rest idk 😭
Answered by Teacher Jernie
The LCM is 60.

60 min = 1 hour

Take note of the term "from" in the last part of the question - "...from 8 am to 11 am", and the idea LEAVE TOGETHER. 8 am is counted, so

8 am + 1 hour = 9 am
9 am + 1 hour = 10 am

8 am-9am-10am = 3 times

11 am will not be included because it is the cut off. If the two buses leave again at 11 am, the schedule will now be changed.

However, if the word "from" is replaced by "between" then the answer should be 2 times. The word BETWEEN indicates that the starting point is not included and the end point as well.

9 am and 10 am = 2 times
Answered by 2+2=5
60......
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