Ms. Althea

Ms. Althea reaped 180 tomatoes from her field. She gave 1/5 of them to a friend, sold 0.75 of the remainder, and kept the rest for herself. What percentage of the total did Ms. Does Althea keep it for herself?

Correct answer:

p =  20 %

Step-by-step explanation:

$$\begin{gathered} a=\frac{1}{5}=0.2 \\ b=0.75\cdot (1-a)=0.75\cdot (1-\frac{1}{5})=\frac{3}{5}=0.6 \\ p=100\cdot (1-a-b)=100\cdot (1-\frac{1}{5}-\frac{3}{5})=20\% \end{gathered}$$

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