Question : A and B start moving from places X to Y and Y to X, respectively, at the same time on the same day. After crossing each other, A and B take
Option 1: 22
Option 2: 2
Option 3:
Option 4:
Correct Answer:
Solution :
Speed of A = 33 km/hr
After crossing each other,
Time taken by A to reach destination =
Time taken by B to reach destination = 9 hours
Let the speed of B be v km/hr.
Let both A and B meet at point Z after t hours.
The time taken by A and B to cover XZ is t hrs and 9 hrs respectively.
Now, Speed =
⇒ XZ = 33 × t = v × 9 ----(1)
Similarly, the Time taken by A and B to cover YZ is
⇒ YZ =
Dividing (1) by (2), we get,
⇒ t
2
= 9 × (
⇒ t =
Substituting t in (1), we get
33 × 7 = v × 9
Hence, the correct answer is
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