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Question

Answer

Art         [u][u][u]

Choir     [u]

Dance increased 45% to 116

(a)  145% -> 116

          45% -> (116/145)   x 45  = 36

Hence total number of students who left the Art Club and the Choir is 36

(b)   20% = 1/5

      (1/5)(3u) + (1/5)(u) = 36   <——— x 5 on both sides

               3u + u = 180

                   4u = 180   => u = 180/4 = 45

Hence number of students in the Art club at first = 3u = 3 x 45 = 135

PS: Please click “Accept Answer” if the answer is correct.

 

1 Reply 1 Like

Hi Prettyhomework,

Is the answer incorrect?  What is the answer key?

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