Time and Distance :-
Here Some Basic Formulas/Rules Are given below :-
Distance = (Speed x Time)
Speed = Distance
Time = Distance
x km / hr =
x X 5/18
) m /sec
x m / sec =
x X 18/5
If the ratio of the speeds of A and B is a : b, then the ratio of the times taken
by them to cover the same distance is 1/a : 1/b
or b : a.
Suppose a man covers a certain distance at x km / hr and an equal distance at
y km / hr. Then, the average speed during the whole journey is :
= 2xy km/ hr.
x + y
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