Discuss Forum
1. Arif starting from x goes to Y. t the same time Boby starts from Y and goes towards X. Once Arif reaches Y, he changes his direction and returns to X. Once Boby reaches X, he changes his direction and returns to Y. Throughout the journey, Arif travels at 54 kmph and Boby travels at 72 kmph. By the time they meet for the second tike, boby covers 36 km more than Arif. Find the distance (in km) between X and Y.
- A. 72
- B. 72
- C. 72
- D. 72
Answer: Option B
Explanation:
The rate of difference between two is 18
So, 36 KM, is difference in two hours.
The distance covered in 2 hours is 2*72=144
The distance covered in 2 hours is 2*54=108
The total distance at the time of meeting second time is 3 times total distance i.e 3D
3D=144+108
3D=252
D=84
So, 36 KM, is difference in two hours.
The distance covered in 2 hours is 2*72=144
The distance covered in 2 hours is 2*54=108
The total distance at the time of meeting second time is 3 times total distance i.e 3D
3D=144+108
3D=252
D=84
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