@joyjitpal My method is different but the logic is same.
At 8am, the difference between hour hand and minute hand is 240 degree. Now we need the time when the difference between them is 180 degree. So both hands move at a relative speed of 5.5 degree.
Time when both hands will be at a distance of 180 degree will be => (240-180)/5.5
=> 60/5.5 => 120/11
time will be 8am + 120/11
Similarly , for 2 pm , the difference is 60 degree between both the hands,
2:00-2:10 ( approx) = 60 degree
2:10-2:41( approx) = 180 degree
Therefore, time will be (60 + 180)/5.5 => 480/11
Note: the minute hand first cover 60 degree approx. ( a bit more) to coincide with the hour hand first and then together they will have to maintain a distance of 180 degree at the relative speed.
time will be 2pm + 480/11
now difference in time will be (2pm + 480/11) - (8am + 120/11)
6hr + 360/11
6hr Answer.... ( 360/11 means they return to the same point of time...)
Birbal says to akhbar "I am thrice as old as you were when i was as old as you are" . If the sum of their present ages is 80 years,then how many years ago was birbal twice as old as akhbar ?
Birbal says to akhbar "I am thrice as old as you were when i was as old as you are" . If the sum of their present ages is 80 years,then how many years ago was birbal twice as old as akhbar ?
