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Question

I’m so sorry to have accidentally deleted this question by @Kiki4684 while cleaning up AskQ.  I’ve managed to save and repost @mr.tan’s answer (although not perfectly 😥 ).

Please accept my apologies!  

 

Answer

NOTE: This answer is by @mr.tan!

Let the price of shoes be 3p and bags be 4p. So 4p-3p = p = $4.
That means a pair of shoes cost 12 and a bag cost $16.
                       Shoes Bags
Cost in $       12        16
Items             u         2u
Sales in $     12u      32u = 16 x 2u
If u shoes were sold, then 2u bags were sold. The sales are then
12u for shoes and 32u for bags. Total of 44u = 396, so u = 9.

(a) Total number of items sold = u + 2u = 3u = 3 x 9 = 27.
(Check: 9 shoes, 18 bags, sales = 9×12 + 18×16 = 396)

(b) 1/5 items were sold. That is 27. So 4/5 is 4 x 27 = 108.
That means 108 items were left after the first month.

0 Replies 1 Like ✔Accepted Answer