sset92
If two bodies start to move towards each other from opposite points P and Q, they meet at 0.6D from P. Find the point of their 4th meeting.
A) 0.2D
B) 0.4D
C) 0.6D
D) 0.8D
E) 0.3D
If this question is a sub-part of a set, the data of the set needs to be given along with it. Otherwise, it makes no sense.
Assuming A and B are moving around a circle and start from diametrically opposite points P and Q and circumference is 2D and that options give distance from P.
If their first meeting while moving toward each other is at a distance of 0.6D from P, it means A covered 0.6D and B covered 0.4D. So ratio of their speeds is 3:2. So every time A covers 3/5th of the circle i.e. 1.2D and B covers 2/5th of the circle i.e. 0.8D.
Their fourth meeting takes place when A has covered 3.6D distance from the present point i.e. 1 full circle of 2D (and it comes back to 0.6D from P) and another 1.2D which means it reaches 0.2D ahead of P.
Answer (A)
Check here:
https://youtu.be/Jz-mSB1xNFY