Question

Kanchan dyes dresses. She had to dye $40$ dresses. She has so far finished $20$ dresses. What percentage of dresses has she finished?
[2 Marks]

Answer 1

Given,
The total number of dresses Kanchan had to dye $=40$
Number of dresses she had finished $=20$

Therefore, the fraction of dresses she has finished $=\frac{20}{40}=\frac{1}{2}$.
[1 Mark]

Now, to convert fraction to percentage:
$=\frac{1}{2}$
$=\frac{1\times 50}{2\times 50}$
$=\frac{50}{100}$
$=50\%$

Hence, percentage of dresses Kanchan has finished is $50\%$.
[1 Mark]