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WE:Education (Education)
A circular rim 25 inches in diameter rotates the same number of inches
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01 Aug 2021, 10:46
01 Aug 2021, 10:46
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A circular rim 25 inches in diameter rotates the same number of inches per second as a circular rim 40 inches in diameter. The smaller rim makes 16 revolutions per second.
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Quantity A |
Quantity B |
Number of revolutions per minute made by the larger rim |
100 |
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Retired Moderator
Joined: 19 Nov 2020
Posts: 326
Given Kudos: 64
GRE 1: Q160 V152
Re: A circular rim 25 inches in diameter rotates the same number of inches
[#permalink]
01 Aug 2021, 13:57
01 Aug 2021, 13:57
3
25*3.14=perimeter of small rim
16 rev/sec=16*60 rev/min and one rev=25*3.14 OR distance traveled in one min=25*3.14*16*60
40*3.14=perimeter of large rim
Number of revolutions per minute made by the larger rim=(25*3.14*16*60)/40*3.14=25*16*60/40=25*4*6=600
Answer is A
16 rev/sec=16*60 rev/min and one rev=25*3.14 OR distance traveled in one min=25*3.14*16*60
40*3.14=perimeter of large rim
Number of revolutions per minute made by the larger rim=(25*3.14*16*60)/40*3.14=25*16*60/40=25*4*6=600
Answer is A
KarunMendiratta wrote:
A circular rim 25 inches in diameter rotates the same number of inches per second as a circular rim 40 inches in diameter. The smaller rim makes 16 revolutions per second.
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Quantity A |
Quantity B |
Number of revolutions per minute made by the larger rim |
100 |
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Re: A circular rim 25 inches in diameter rotates the same number of inches
[#permalink]
22 Mar 2025, 19:15
22 Mar 2025, 19:15
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