Is this a changed total type of question? Any help to solve it will be appreciated. Tks!
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Question
Answer
hwachie
In the end, ratio of assessment books to story books is 1 : 6
Working backwards to find initial number of books:
Subtract the 200 assessment books bought and add back the 1/3 of story books sold (6 units is 2/3, initial would be 9 units). The initial ratio would then be 1u – 200 : 9 u.
Equate the initial total number of books to be 5800:
10 u – 200 = 5800
10 u = 6000
u = 600.
(a) Total number of books at the end = 7 u
= 7 x 600
= 4200
(b) Initial number of assessment books = 1 u – 200
= 600 – 200
= 400
Initial number of story books = 9 u
= 9 x 600
= 5400
Difference = 5400 – 400
= 5000 //
