A boy goes to his school from his house at a speed of 4 km/h and return back to the home at the speed of 3 km/h. if he takes total time 7 hours in going and coming then what is the distance between home and college?

Options
- 21 km
- 22 km
- 23 km
- 24 km

CORRECT ANSWER : 24 km

Discussion Board
Wrong answer

Relative speed=2(4)(3)/4+3=24/7
Time=7hours
Then,
Distance=speed*time=24
The required distance=24/2=12km


Nikhitha S Rao 04-12-2020 11:47 AM

solution

correct answer is 12

Prajakta Madhukar Jadhav 04-8-2020 10:34 AM

solution

here ans is wrong
correct ans is 12

Deji verma 01-28-2020 01:15 PM

math

no

anil 10-14-2019 12:02 AM

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