Question

At a pet store, $40\%$ of the $30$ cats have brown eyes. The fraction of dogs at the store with green eyes is equal to the fraction of cats at the store with brown eyes. How many of the $40$ dogs at the store have green eyes?

• A. $6$
• B. $10$
• C. $12$
• D. $14$
• E. $16$

Answer 1

Answer: (E)

$16$

As per question, the fraction of dogs at the store with green eyes is equal to the fraction of cats at the store with brown eyes.
Fraction of cats have brown eyes $\frac{40}{100}$
Fraction of dogs at the store with green eyes $\frac{x}{100}$
Therefore, $\frac{40}{100}=\frac{x}{100},x=40$ $\%$
So, the dogs at the store have green eyes $=\frac{40\times 40}{100}=16$
Hence, option $E$ is correct.