A small aeroplane can travel at 400kmph in still air The wind is blowing at a constant speed of 40km...........

Quantitative Aptitude ( CCS) Boats and Streams

A small aeroplane can travel at 400kmph in still air . The wind is blowing at a constant speed of 40kmph . The total time for a journey against the wind is 120min. What will be the time in minutes for the return journey with the wind?

98.18min.

220min.

114min.

80min.

छोटे Courses बड़े Results

Master Boats and Streams

Prepare through Micro-courses

Try Now

Explanation:

Solution:
400 – 40 = 360 kmph
Let distance be x km
Take time in hours
=> 120/60 = x/360
=> x = 720 km
Speed of aeroplane with the wind = 440 kmph
Therefore ,
Time taken by aeroplane with the wind = (720/440 ) * 60 = 98.18 min.