A and B travel from X to Y at the speed of 40 km/hr and 60 km/hr respectively . If B takes \(\frac{1}{2}\) hour lesser time than A , then what is the distance between the X and Y ?
Answer & explanation
Correct answer: option 2
Ratio A : B
40 : 60
Speed 2 : 3
Time 3 : 2
( Distance = Speed × Time , so ratio of speed and time is inverse to each other )
According to question ,
1R = 30 minutes
3R = 90 minutes
Distance = 40 × \(\frac{90}{60}\) = 60 km