The weight of $36$ books is $9 k g$ . Find the number of books in $4 k g$ .

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Solution

Find the weight of books:
Number of books in $9 k g$ $= 36$
Number of books in $1 k g$ = $\frac{36}{9} = 4$
Number of books in $4 k g$ = $4 \times 4 = 16$
Hence, the number of books in $4 k g$ is $16$ .

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