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A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.
- a)25 km/hour
- b)28 km/hour
- c)24 km/hour
- d)20 km/hour
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
A car travels a certain distance from A to B at the speed of 20 km/hou...
GIVEN:
Speed of a Car from A to B = 20 km/hour
Speed of Car from B to C = 30 km/hour
Speed of a Car from A to B = 20 km/hour
Speed of Car from B to C = 30 km/hour
CONCEPT:
If in these types of questions, the distance is same then we ignore the value of the distance.
If in these types of questions, the distance is same then we ignore the value of the distance.
FORMULA USED:
Average Speed = 2 × S1 × S2/S1 + S2
Average Speed = 2 × S1 × S2/S1 + S2
CALCULATION:
∴ Required Average speed = 2 × 20 × 30/20 + 30 = 24 km/hour
∴ Required Average speed = 2 × 20 × 30/20 + 30 = 24 km/hour
Most Upvoted Answer
A car travels a certain distance from A to B at the speed of 20 km/hou...
When distance us halved the avg. speed is 2VU/V+U
where V and U are the speeds
where V and U are the speeds
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Community Answer
A car travels a certain distance from A to B at the speed of 20 km/hou...
GIVEN:
Speed of a Car from A to B = 20 km/hour
Speed of Car from B to C = 30 km/hour
Speed of a Car from A to B = 20 km/hour
Speed of Car from B to C = 30 km/hour
CONCEPT:
If in these types of questions, the distance is same then we ignore the value of the distance.
If in these types of questions, the distance is same then we ignore the value of the distance.
FORMULA USED:
Average Speed = 2 × S1 × S2/S1 + S2
Average Speed = 2 × S1 × S2/S1 + S2
CALCULATION:
∴ Required Average speed = 2 × 20 × 30/20 + 30 = 24 km/hour
∴ Required Average speed = 2 × 20 × 30/20 + 30 = 24 km/hour
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A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.a)25 km/hourb)28 km/hourc)24 km/hourd)20 km/hourCorrect answer is option 'C'. Can you explain this answer?
Question Description
A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.a)25 km/hourb)28 km/hourc)24 km/hourd)20 km/hourCorrect answer is option 'C'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.a)25 km/hourb)28 km/hourc)24 km/hourd)20 km/hourCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.a)25 km/hourb)28 km/hourc)24 km/hourd)20 km/hourCorrect answer is option 'C'. Can you explain this answer?.
A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.a)25 km/hourb)28 km/hourc)24 km/hourd)20 km/hourCorrect answer is option 'C'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.a)25 km/hourb)28 km/hourc)24 km/hourd)20 km/hourCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.a)25 km/hourb)28 km/hourc)24 km/hourd)20 km/hourCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A car travels a certain distance from A to B at the speed of 20 km/hour and B to C at the speed of 30 km/hour. If the distance between A to B and B to C is 120 km. Find the average speed of the car in the whole journey.a)25 km/hourb)28 km/hourc)24 km/hourd)20 km/hourCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Defence.
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