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A wheel makes 900 revolutions to go from city B to city A taking 4 hou
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20 Apr 2023, 15:28
20 Apr 2023, 15:28
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68% (01:27) correct
31% (02:06) wrong based on 19 sessions
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A wheel makes 900 revolutions to go from city B to city A taking 4 hours to do so. How many revolutions would the wheel makes to go to city C from city B which is 160 minutes away from the city B. (Speed of the wheel remains constant throughout).
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Re: A wheel makes 900 revolutions to go from city B to city A taking 4 hou
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22 Apr 2023, 00:48
22 Apr 2023, 00:48
1
Expert Reply
We can start by finding the number of revolutions the wheel makes per hour to travel from city B to city A:
Number of revolutions = 900
Time taken = 4 hours
Revolutions per hour = 900/4 = 225
This means that the wheel makes 225 revolutions in one hour.
City C is 160 minutes away from city B, which is 2 hours and 40 minutes, or 2.67 hours.
To find the number of revolutions the wheel makes to travel from city B to city C, we can use the formula:
Number of revolutions = Revolutions per hour x Time taken
Number of revolutions = 225 x 2.67 = 601.5
Rounding to the nearest whole number gives:
Number of revolutions = 602
Therefore, the wheel makes 602 revolutions to go from city B to city C. The closest option is (D) 600 revolutions.
Number of revolutions = 900
Time taken = 4 hours
Revolutions per hour = 900/4 = 225
This means that the wheel makes 225 revolutions in one hour.
City C is 160 minutes away from city B, which is 2 hours and 40 minutes, or 2.67 hours.
To find the number of revolutions the wheel makes to travel from city B to city C, we can use the formula:
Number of revolutions = Revolutions per hour x Time taken
Number of revolutions = 225 x 2.67 = 601.5
Rounding to the nearest whole number gives:
Number of revolutions = 602
Therefore, the wheel makes 602 revolutions to go from city B to city C. The closest option is (D) 600 revolutions.
Re: A wheel makes 900 revolutions to go from city B to city A taking 4 hou
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22 Apr 2023, 04:15
22 Apr 2023, 04:15
1
Carcass wrote:
A wheel makes 900 revolutions to go from city B to city A taking 4 hours to do so. How many revolutions would the wheel makes to go to city C from city B which is 160 minutes away from the city B. (Speed of the wheel remains constant throughout).
300
450
500
600
750
300
450
500
600
750
900 rotation/4 hour = 900 /240 min
Proportion 900/240min = x/160min
x = 900 * 160 /240 = 300*2 = 600
