Bus A and Bus B leave the bus depot at 9 am. Bus A takes 30 minutes to do its route and bus B takes 40 minutes to complete its route. At what time are they both back at the bus depot together? Give your answer as a 12-hour clock time. i'll mark as a brilliant!
Answers
Reaching Time
11 AM or 1100 hours
Time taken
One hundred twenty minutes or 2 hours
Step-by-step explanation:
For that,
We should find a time period which will be common for both.
Simply, the question is saying to find the LCM(Least Common Factor).
Easy Trick=>Write all multiples of 30 and 40 upto 10 times.
30=30,60,90,120,150,180,210,240,270,300
40=40,80,120,160,200,240,280,320,360,400
I marked the common factors as Bold and LCM as Bold, Italic and Underlined.
This means that both buses will be reaching the depot together after 120 mins. or 2 hrs.
Clear answer is that both the buses will stop together in depot at 11 AM.
Answer:
Step-by-step explanation:
Let the bus A and bus B
time taken by bus A=30minutes
time taken by bus B=30minutes
Total time =1hr(60minutes)
it means bus came at 10:00
Time taken by bus Ato go =40minutes
Time taken by bus B to go =40minutes
Total time =80minutes
it mean bus came at 10:20