pandu takes 2 hr more than bunty to cover a certain distance . If he doubles his speed, he will take 3hr less than bunty to cover the same distance. find the no of hr taken by bunty to cover the distance
Answers
Answered by
1
Aunty takes 5hr of time
shivamguptafzd7:
your answer is wrong man.
can u say the correct one
the right answer is 8hr.
thanks man
Answered by
13
Let time take by Bunty to walk D km = T
Time taken by Pandu to walk D km = (T +2).
Since, S×T = D. When distance is constant, Speed is inversely propotional to time taken, means if speed become double, time taken would become half.
So,
In second case time taken by Pandu = (T +2)/2.
Now, this time A takes 1 hr less than Bunty.
(T +2)/2 = T-3
T +2 = 2T - 6
T = 8 hours.
Time taken by Pandu to walk D km = (T +2).
Since, S×T = D. When distance is constant, Speed is inversely propotional to time taken, means if speed become double, time taken would become half.
So,
In second case time taken by Pandu = (T +2)/2.
Now, this time A takes 1 hr less than Bunty.
(T +2)/2 = T-3
T +2 = 2T - 6
T = 8 hours.
your answer is wrong priya, the right answer is 8hr.
Ur Right priya
Similar questions