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The price of an item dropped from 15 shekels to 12 shekels. By what percentage did the price drop?
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The change in the price of an item is given, and you are asked to calculate this change as a percentage.

The difference in the price is 3 shekels out of 15 shekels. You have to calculate what percent of 15 is 3 .
Convert the question into a mathematical expression: $\frac{\mathrm{a}}{100} \cdot 15=3$. Solve the equation for a:
$a=\frac{3 \cdot 100}{15}=20$
Thus, the price dropped by $20 \%$.
by Diamond (81,058 points)

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