Correct option is B
Given:
Speed of Train 1 = 80 km/hr
Speed of Train 2 = 105 km/hr
Train 1 leaves Station A at 6:00 a.m.
Train 2 leaves Station A at 8:30 a.m., 2.5 hours later.
Solution:
Time gap between the two trains:
Train 2 starts 2.5 hours later than Train 1.
In this 2.5 hours, Train 1 will cover:
Distance covered by Train 1 in 2.5 hours = Speed × Time = 80 km/hr × 2.5 hrs = 200 km
Since both trains are moving in the same direction, the relative speed is the difference in their speeds:
Relative speed = 105 km/hr − 80 km/hr = 25 km/hr
Time taken for Train 2 to catch up with Train 1:
Time =
Distance at which they meet:
Train 2 will meet Train 1 after 8 hours of travel from 8:30 a.m. (when Train 2 starts). The distance traveled by Train 2 in 8 hours is:
Distance traveled by Train 2=
Train 2 will meet Train 1 at a distance of 840 km from Station A.
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