Ron and Tim works for Sara. Sara told them that her sister Maya will be passing through the town subway between 17:00 and 21:00 hours and asked them to hand over a parcel to her sister when she arrives at the subway junction. She tells the hour of her sister's arrival to Ron and minutes of her arrival to Tim.Ron and Tim find the subway Time-table and got to know the arrival trains timing between 17:00 and 21:00 hours as follows: 17:22 17:29 17:45 18:06 18:28 19:08 19:22 20:06 20:08 20:45.After both looked at the time-table :-Ron tells to Tim:- "I do not know what time Maya will be coming and I am sure that neither you know"Tim replies:- "I didn't knew Maya's train time, but now I know"Ron replies:- "Now I know as well"What is Maya's train timing.
Answers
Given : Train passing through between 17 :00 & 21:00 . time table for train .
To find : Maya train timing
Solution:
Hour Minutes
17 - - 22 - 29 45
18 06 - - 28 -
19 - 08 22 - - -
20 06 08 - - - 45
Here mins 28 , 29 are unique minutes appearing only once
Ron knows only hour so she would not be knowing exact timing of subway. But she says Tim also does not who knows minutes only
hence the hour known to Ron does not have any unique timing .
so hour must be 19 or 20
now as Tim knows that hour is 19 or 20 hence minutes can not be 8 otherwise she would not know exact timing
so we left with 3 timings 19:22 20:06 20:45
as now Ron also knows time hence hour must be 19 as that has only one time
Hence Maya train timing is 19 : 22
Learn more:
Steve is taking a bus to the Central Park. Steve tells Alice the hour of ...
https://brainly.in/question/16496302
While booking a bus ticket, Arpan tells Sita the hour of his bus ...
https://brainly.in/question/16771899