Salman was travelling on one side of the Yamuna express way with a constant speed of 120 kmph in his...........

Quant (SSC) Time & distance

Salman was travelling on one side of the Yamuna express way with a constant speed of 120 kmph in his car. Govinda was travelling with a constant speed of 80 kmph in the opposite direction. When they crossed each other, Salman decided to take a U-turn and meet him. But before taking a U turn, Salman had to travel for another 3 minutes. How long will it take for Salman to meet Govinda? [Assume time taken by Salman to take U turn is negligible]

28 min

29 min

30 min

None of these

छोटे Courses बड़े Results

Master Time & distance

Prepare through Micro-courses

Try Now

Explanation:

Distance Travelled by Salman in 3 minutes = 3/60 x 120 = 6 km
Distance travelled by Govinda in 3 minutes = 3/60 x 80 = 4 km
Hence Salman will have to travel a distance of 10 km before catching up with Govinda.
Relative speed of Salman to that of Govinda after taking U turn = 120 – 80 = 40 kmph
∴ Time taken by Salman after taking U turn to Meet Govinda = 10/40 = 15 minutes
Total time taken by Salman to meet Govinda = (3 + 15)minutes = 18 minutes