a man walks 4 km /h missed the bus by 3 mins late the man walked 4 km/h reached the bus atop 3 mins early. how far is the bus stop from his house
Answers
CORRECT QUESTION:
A man walks 4 km/h missed the bus by 3 mins late the man walked 5 km/h reached the bus stop 3 mins early. How far is the bus stop from his house?
ANSWER:
- The distance between the bus stop and his house = 2 km.
GIVEN:
- A man walks 4 km/h missed the bus by 3 mins late.
- The man walked 5 km/h reached the bus stop 3 mins early.
TO FIND:
- The distance between the bus stop and his house.
EXPLANATION:
Time difference = 3 - (- 3) = 6 min = 1/10 hrs.
Let the distance be x.
★ Time = Distance / speed
Time take at first time = x/4
Time take at second time = x/5
•°• 1/10 = x/4 - x/5
•°• (5x - 4x)/20 = 1/10
•°• (5x - 4x)/2 = 1
•°• 5x - 4x = 2
•°• x = 2 km.
The distance between the bus stop and his house = 2 km.
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★ Correct Question :
- A man walks 4 km/h missed the bus by 3 mins late the man walked 5 km/h and reached the bus stop 3 mins early. How far is the bus stop from his house?
★ Required Answer :
- Distance between the bus stop and his house is 120 km.
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★ Step by step explanation :
- Speed of man when he missed the bus by 3 mins late = 4 km/h
- Speed of man when he reached the bus stop 3 mins earlier = 5 km/h
- Time difference = 3 - (-3) = 6 mins = 1/10 hours.
- We had to find out the distance between his house and bus stop.
★ Using formula :
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★ Let :
- Distance between his house and bus stop = d km
Atq,
- In first case :
➢ㅤㅤㅤTime(1) = Distance/speed = d/4
- In second case :
➢ㅤㅤㅤTime(2) = distance/speed = d/5
Therefore,
➵ㅤㅤㅤDistance = Time(1) - Time(2)
➵ㅤㅤㅤ1/10 = d/4 - d/5
- Taking LCM :
➵ㅤㅤㅤ1/10 = (5d - 4d)/20
➵ㅤㅤㅤ1/10 × 20 = d
➵ㅤㅤㅤd = 2 km
∴ Distance between his house and bus ㅤstop = 2km
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