Math, asked by shahidaparveenlaskar, 2 months ago

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

Answered by BrainlyTornado
84

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.


amansharma264: nyccc
Answered by MяMαgıcıαη
224

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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 :

\qquad\red\bigstar\:{\underline{\boxed{\bf{Time = \dfrac{Distance}{Speed}}}}}

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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 stop = 2km

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