Book sales of six branches: average of three branches in one year as a percentage of average of three in the other

The same question, asked 2 times: 10 Sep 2024 S1*, 25 Sep 2024 S3. Every wording below, oldest first.

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Question 1
10 Sep 2024 S1
62 $The bar graph given below shows the sales of books from six schools during two consecutive years, 2013 and 2014. What percentage of the average sales of the schools A, B, and C in 2014 is the average sales of schools A, C, and F in 2013?$
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Question 2
25 Sep 2024 S3
65 $Study the given bar-graph and answer the question that follows. The bar-graph shows the sales of books (in thousands) from six branches (B1, B2, B3, B4, B5 and B6) of a publishing company during two consecutive years 2000 and 2001. What percentage of the average sales of branches B1, B2 and B3 in 2001 is the average sales of branches B1, B3 and B6 in 2000?$
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Question 1