Sana has completed $\frac{2}{5}$ of a school survey in 8 days. At the same pace, how many more days will she need to finish it?

4\frac{4}{5}

daysCorrect answerYour answer12 daysCorrect answerYour answer20 daysCorrect answerYour answer28 daysCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

$\frac{2}{5}$ in 8 days means the whole survey takes $8 \times \frac{5}{2} = 20$ days.
The remaining $\frac{3}{5}$ takes $\frac{3}{5} \times 20 = 12$ days.

Worth noting

20 days is the whole survey, and 28 days adds the 8 already spent. The question asks only for the days still needed.

Ten questions from Time & Work, at your own pace.

Sana has completed 25\frac{2}{5}52​ of a school survey in 8 days. At the same pace, how many more days will she need to finish it?