Of 300 coins, 240 were quarters. What percentage of the coins are quarters?
Answer:
D
Explanation
The correct answer is Choice D.
To find the proportion of $A$ in $B$, divide $A$ by $B$. If you’d like to express the proportion in percentage, simply multiply the found proportion in fraction by a 100.
Choice A is incorrect because 20% of 300 would equal $300×\frac{20}{100}=60$. Choice B is incorrect because 40% of 300 would equal $300×\frac{40}{100}=120$.
Choice C is incorrect because 60% of 300 would equal $300×\frac{60}{100}=180$.