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A book sold 37,900 copies in its first month of release. Suppose this represents 9.1% of the number of copies sold to date. How many copies have been sold to date? Round your answer to the nearest whole number.

User Trollkotze
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1 Answer

16 votes
16 votes

We know that 9.1% of the total copies sold are 37,900.

If we call N to the total amount of copies sold and see that 9,1% correspond to a proportion of 9.1/100=0.091, we can calculate N as:


\begin{gathered} 0.091\cdot N=37,900 \\ N=(37,900)/(0.091) \\ N\approx416,484 \end{gathered}

Answer: the total number of copies sold is approximately 416,484.

User Yasas Gunarathne
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