Peter 10

Peter covered 1/2 of the journey on Monday, 1/4 of the remainder on Tuesday, and the rest on Wednesday. What fraction of the journey was covered on the two days?

Correct answer:

x =  5/8

Step-by-step explanation:

$$\begin{gathered} a=\frac{1}{2}=0.5 \\ b=\frac{1}{4}\cdot (1-a)=\frac{1}{4}\cdot (1-\frac{1}{2})=\frac{1}{8}=0.125 \\ x=a+b=\frac{1}{2}+\frac{1}{8}=\frac{4}{8}+\frac{1}{8}=\frac{4+1}{8}=\frac{5}{8}=0.625 \end{gathered}$$

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