Question

If Sara has to bake a full cake, she uses $\frac{3}{5}$ of the total quantity of flour that she has. How much part of the total quantity of flour will she need to bake $\frac{1}{6}$ part of a cake?

• A. $\frac{18}{5}$
• B. $\frac{1}{30}$
• C. $\frac{1}{10}$
• D. $\frac{5}{18}$

Answer 1

The correct option is C $\frac{1}{10}$

She uses $\frac{3}{5}$ of the total quantity of flour, she has, to bake a full cake.
To prepare $\frac{1}{6}$ portion of the cake, she will use
$\frac{3}{5}\times \frac{1}{6}=\frac{3}{30}=\frac{1}{10}$

$\therefore$ She would have to use $\frac{1}{10}$ part of the total quantity of flour.