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Joined: 23 Jan 2021
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Concentration: , International Business
A copy machine was used to produce two smaller versions of a rectangul
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17 Oct 2021, 18:32
17 Oct 2021, 18:32
00:00
Question Stats:
85% (01:27) correct
14% (02:36) wrong based on 14 sessions
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A copy machine was used to produce two smaller versions of a rectangular picture. Each dimension of the original picture was reduced by 20 percent to produce the first smaller version, and then each dimension of the first smaller version was reduced by 15 percent to produce the second smaller version. Each dimension of the second smaller version was what percent of the corresponding dimension of the original picture?
A. 35%
B. 38%
C. 65%
D. 68%
E. 70%
A. 35%
B. 38%
C. 65%
D. 68%
E. 70%
Re: A copy machine was used to produce two smaller versions of a rectangul
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17 Oct 2021, 19:33
17 Oct 2021, 19:33
1
A dimension is called a
The dimension of the first smaller version is (100%-20%)a = 80%a
The dimension of the second smaller version is (100%-15%) of first version = 80%.a x 85% = 68%
=> Choice D
The dimension of the first smaller version is (100%-20%)a = 80%a
The dimension of the second smaller version is (100%-15%) of first version = 80%.a x 85% = 68%
=> Choice D
Re: A copy machine was used to produce two smaller versions of a rectangul
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18 Oct 2021, 05:42
18 Oct 2021, 05:42
Expert Reply
Let the original dimension be length 100 & width 80
20% reduction : 80 * 64
15 % reduction: 68 * 54
change is option D 68%
20% reduction : 80 * 64
15 % reduction: 68 * 54
change is option D 68%
