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A boy goes to school from his home at a speed of 4 km/hr and returns at a speed of 6 km/hr. If in total he took 5 hours in going and coming back, the distance between his house and school?
  • a)
    8km
  • b)
    10km
  • c)
    12km
  • d)
    14km
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A boy goes to school from his home at a speed of 4 km/hr and returns a...
5 = d/4 + d/6 (d is the distance between school and home)
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Most Upvoted Answer
A boy goes to school from his home at a speed of 4 km/hr and returns a...
Given data:
Speed of going to school = 4 km/hr
Speed of returning from school = 6 km/hr
Total time taken = 5 hours

Let the distance between the boy's home and school be 'd' km.
Using the formula, Distance = Speed × Time

Time taken to go to school = d/4
Time taken to return from school = d/6

Total time taken = d/4 + d/6
5 = (3d + 2d)/12
5 = 5d/12
d = 12 km

Therefore, the distance between the boy's home and school is 12 km, which is option (c).
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Community Answer
A boy goes to school from his home at a speed of 4 km/hr and returns a...
12km
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A boy goes to school from his home at a speed of 4 km/hr and returns at a speed of 6 km/hr. If in total he took 5 hours in going and coming back, the distance between his house and school?a)8kmb)10kmc)12kmd)14kme)None of theseCorrect answer is option 'C'. Can you explain this answer?
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