DS Geometry problem - It is out of a UCLA workbook

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If L and W represent the length and width of a rectangle, respectively, what is the peremeter?

(1) 2l + w = 40

(2) l+w = 25

I thought the answer was A, but I was wrong...


According to the solution set, the answer is b cuz you can solve the problem by the following equation.

How would you get the perimeter if you have the info in B?

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sev wrote:If L and W represent the length and width of a rectangle, respectively, what is the peremeter?

(1) 2l + w = 40

(2) l+w = 25

I thought the answer was A, but I was wrong...


According to the solution set, the answer is b cuz you can solve the problem by the following equation.

How would you get the perimeter if you have the info in B?
Perimeter = 2(l+w). Knowing the value of l+w can easily give
the perimeter. Hence B