What is the average number of non – academic books published by publishers R and S?

18750

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18850

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19950

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18950

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19990

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Solution

The correct option is C
19950

Non-academic books:

$P u b l i s h e r R \Rightarrow 35700 \times \frac{6}{17} = 12600 P u b l i s h e r S \Rightarrow 37800 \times \frac{13}{18} = 27300 R e q u i r e d a v e r a g e = \frac{12600 + 27300}{2} = \frac{39900}{2} = 19950$

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What is the average number of non – academic books published by publishers R and S?

The correct option is C 19950 Non-academic books: Publisher R⇒35700×617=12600Publisher S⇒37800×1318=27300Required average=12600+273002=399002=19950

The correct option is C
19950

Non-academic books:

$P u b l i s h e r R \Rightarrow 35700 \times \frac{6}{17} = 12600 P u b l i s h e r S \Rightarrow 37800 \times \frac{13}{18} = 27300 R e q u i r e d a v e r a g e = \frac{12600 + 27300}{2} = \frac{39900}{2} = 19950$