There are two places A and B which are separated by a distance of 100km Two boats starts form both t...........

Quantitative Aptitude ( CCS) Boats and Streams

There are two places A and B which are separated by a distance of 100km. Two boats starts form both the places at the same time towards each other. If one boat is going downstream then the other one is going upstream, if the speed of A and B is 12km/hr. and 13km/hr. respectively. Find at how much time will they meet each other.

10 hrs.

4 hrs.

8 hrs.

6 hrs.

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Explanation:

Solution:
Downstream = (12+x)km/hr
Upstream = (13-x)km/hr
Time = Distance / Relative speed
Relative speed = 12 + x + 13 – x = 25 km/hr
Time = 100/25 = 4 hours