Bitoo and Reena

Bitoo ate 3/5 part of the apple, and the remaining part was eaten by his sister Reena. How many parts of an apple did Renna eat? Who had the larger share? By how much?

Correct answer:

R =  2/5
X = B
Y =  0.2

Step-by-step explanation:

$$\begin{gathered} B=\frac{3}{5}=0.6 \\ R=1-B=1-\frac{3}{5}=\frac{1\cdot 5}{5}-\frac{3}{5}=\frac{5}{5}-\frac{3}{5}=\frac{5-3}{5}=\frac{2}{5}=0.4 \end{gathered}$$

$$\begin{gathered} B>R \\ \frac{3}{5}>\frac{2}{5} \\ 3>5 \\ X=B \end{gathered}$$

$Y=B-R=\frac{3}{5}-\frac{2}{5}=\frac{3-2}{5}=\frac{1}{5}=0.2$

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