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Elimination Method of Finding Solution of a Pair of Linear Equations

Two cars are ...

Question

Two cars are moving in the same directions with the same speed of $30$ km/hr. They are separated by $5$ km. What is the speed of the car moving in the opposite direction if it meets the second cars at an interval of $4$ minute?

A

45

km/hr

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B

60

km/hr

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C

105

km/hr

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D

None of these

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Solution

The correct option is A $45$ km/hr

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Similar questions

Two cars A and B are moving in same direction with a speed of 30km per hr. They are separated from each other by 5 km. Third car moving in the opposite direction meets the two cars after an interval of 4 mins. The speed of third car is ? ( use relative velocity to solve the problem)

1. 30km per hr

2. 25km per hr

3. 40km per hr

4. 45km per hr

Q. Two cars are moving in the same direction with a speed of 30

k m h^{- 1}

. They are separated from each other by 5 km. Third car moving in the opposite direction meets the two cars after an interval of 4 minutes. What is the speed of the third car?

Q. Two car are moving in the same direction with same speed of

30 k m p h

. They are separated by

5 k m

. What is the speed of car moving in the opposite direction if it meets the two cars at an interval of

4

Q. Two cars are moving in the same direction with a speed of

30 {km h}^{- 1}

. They are separated from each other by

5 km

. Third car moving in the opposite direction meets the two cars after an interval of 4 minutes. What is the speed of the third car?

A

B

are moving with same speed of

45 k m / h r

along same direction. If a third car

C

coming from the opposite direction with a speed of

36 k m / h r

meets two cars in an interval of

5 m i n

, the distance of separation of two cars

A

B

should be (in km)

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