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A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?
- a)70.24 km/hr
- b)74. 24 km/hr
- c)71.11 km/hr
- d)72.21 km/hr
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr...
Most Upvoted Answer
A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr...
General equation::S=D/T... calculate T by using case1 & case2...i.e First half T=160/64=2.5Hr Second half T=160/80=2Hr....Now Total T=4.5Hr...Substitute T in equation i.e S=320/4.5==71.111
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A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr...
Average Speed Calculation:
To calculate the average speed, we need to use the formula:
Average Speed = Total Distance / Total Time
We are given:
Distance travelled in the first 160 km = 160 km
Speed for the first 160 km = 64 km/hr
Distance travelled in the next 160 km = 160 km
Speed for the next 160 km = 80 km/hr
Total distance travelled = 320 km
To calculate the total time taken, we can use the formula:
Time = Distance / Speed
Using this formula, we can calculate the time taken for the first 160 km and the next 160 km.
Time taken for the first 160 km = 160 / 64 = 2.5 hours
Time taken for the next 160 km = 160 / 80 = 2 hours
Total time taken = 2.5 + 2 = 4.5 hours
Now, we can substitute the values in the formula for average speed.
Average Speed = Total Distance / Total Time
Average Speed = 320 / 4.5
Average Speed = 71.11 km/hr
Therefore, the average speed for the first 320 km of the tour is 71.11 km/hr.
To calculate the average speed, we need to use the formula:
Average Speed = Total Distance / Total Time
We are given:
Distance travelled in the first 160 km = 160 km
Speed for the first 160 km = 64 km/hr
Distance travelled in the next 160 km = 160 km
Speed for the next 160 km = 80 km/hr
Total distance travelled = 320 km
To calculate the total time taken, we can use the formula:
Time = Distance / Speed
Using this formula, we can calculate the time taken for the first 160 km and the next 160 km.
Time taken for the first 160 km = 160 / 64 = 2.5 hours
Time taken for the next 160 km = 160 / 80 = 2 hours
Total time taken = 2.5 + 2 = 4.5 hours
Now, we can substitute the values in the formula for average speed.
Average Speed = Total Distance / Total Time
Average Speed = 320 / 4.5
Average Speed = 71.11 km/hr
Therefore, the average speed for the first 320 km of the tour is 71.11 km/hr.
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A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?a)70.24 km/hrb)74. 24 km/hrc)71.11 km/hrd)72.21 km/hrCorrect answer is option 'C'. Can you explain this answer?
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A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?a)70.24 km/hrb)74. 24 km/hrc)71.11 km/hrd)72.21 km/hrCorrect answer is option 'C'. Can you explain this answer? for Quant 2025 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?a)70.24 km/hrb)74. 24 km/hrc)71.11 km/hrd)72.21 km/hrCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?a)70.24 km/hrb)74. 24 km/hrc)71.11 km/hrd)72.21 km/hrCorrect answer is option 'C'. Can you explain this answer?.
A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?a)70.24 km/hrb)74. 24 km/hrc)71.11 km/hrd)72.21 km/hrCorrect answer is option 'C'. Can you explain this answer? for Quant 2025 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?a)70.24 km/hrb)74. 24 km/hrc)71.11 km/hrd)72.21 km/hrCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A car travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. What is the average speed for the first 320 km of the tour?a)70.24 km/hrb)74. 24 km/hrc)71.11 km/hrd)72.21 km/hrCorrect answer is option 'C'. Can you explain this answer?.
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