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If a rectangular photograph that Is 10 inches wide by 15 inches long Is to be enlarged so that the width will be 22 inch

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by BTGModeratorVI » Tue Feb 16, 2021 8:15 am
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If a rectangular photograph that Is 10 inches wide by 15 inches long Is to be enlarged so that the width will be 22 inches and the ratio of width to length will be unchanged, then the length, in inches, of the enlarged photograph will be

(A) 33
(B) 32
(C) 30
(D) 27
(E) 25

Answer: A
Source: official guide
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Re: If a rectangular photograph that Is 10 inches wide by 15 inches long Is to be enlarged so that the width will be 22

by Brent@GMATPrepNow » Sat Feb 27, 2021 7:00 am
BTGModeratorVI wrote: ↑
Tue Feb 16, 2021 8:15 am
 If a rectangular photograph that Is 10 inches wide by 15 inches long Is to be enlarged so that the width will be 22 inches and the ratio of width to length will be unchanged, then the length, in inches, of the enlarged photograph will be

(A) 33
(B) 32
(C) 30
(D) 27
(E) 25

Answer: A
Source: official guide
We can solve this question using equivalent ratios

We can use the ratio width/length

Let x = the length of the enlarged photograph

We can write: 10/15 = 22/x
We can save ourselves some time by simplifying the first ratio to get: 2/3 = 22/x
Cross multiply to get: 2x = (3)(22)
Solve: x = 33

Answer: A
Brent Hanneson - Creator of GMATPrepNow.com
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