Question

5% of a batch of $400$ fruits are rotten. What is the ratio of rotten fruits to the fruits that are not rotten?

• A. 1:95
• B. 1:20
• C. 5:19
• D. 1:19

Answer 1

The correct option is D 1:19

Number of rotten fruits = 5% of the total number of fruits
$=5\%of400$
$=\frac{5}{100}\times 400$
$=20$

Number of fruits that are not rotten = total number of fruits - number of fruits that are not rotten
$=400-20=380$

Ratio of rotten fruits to fruits that are not rotten $=\frac{\text{number of rotten fruits}}{\text{number of fruits that are not rotten}}=\frac{20}{380}=\frac{1}{19}$

So, ratio of rotten fruits to fruits that are not rotten $=1:19$