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Price of a pair of shoes : a bag = 3u : 4u

Given 4u – 3u = u = $ 4

3u =  $ 12

4u =  $ 16

A pair of shoes cost $ 12 and a bag cost $ 16.

 (a)

If n pair of shoes were sold in the first month, 2n bags were sold.

 Given 12n +  16 × 2n = 396

44n = 396

n = 9

3n = 27

27 items were sold in the first month. bags were sold. 

 (b)  1/5 of the total items were sold in the first month.  

 27 × 4= 108

108 items were left after the first month. 

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