Question

Two persons, Hari and Shyam, who are at a distance of 100 km from each other, move towards each other from
two places P and Q at speeds of 20 kmph and 25 kmph respectively. Shyam reaches P, returns immediately and
meets Hari, Who started on the return journey to P immediately after reaching Q, at R. What is the distance
between Q and R?
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Answer 1

Answer:

33.33 km

Step-by-step explanation:

Since they meet each other, and completed full one-way travel, they have traveled 100*3=300 km together, 100 km each and 100 km shared

They spent 300/(20+25)= 6.66 hr on travel

Hari traveled: 20*6.66≈133.33 km

Shyam traveled: 25* 6.66≈166.67 km

Since Hari started at P, reached Q and returned towards P. And he is 133.33-100= 33.33 km away from the point Q, which is the point R.

So the distance between Q and R ≈ 33.33 km