The speed of two cars A & B is in ratio 3 : 4 . Find ratio of time taken by them .
Answer & explanation
Correct answer: option 3
Distance = Speed × Time
& Speed = \(\frac{Distance}{Time}\)
If distance is same , The ratio of the speeds of two objects is inversely proportional to the ratio of the time by them to cover the same distance.
Ratio of speed of car A & B = 3 : 4
Let speed of car A = 3x & Speed of car B = 4x
And Distance = D
A : B
Speed 3 : 4
Time \(\frac{D}{3x}\) : \(\frac{D}{4x}\)
Time \(\frac{1}{3}\) : \(\frac{1}{4}\)
4 : 3