Definitely 7179

Ivan and Mirka shared pears in the mission. Ivan always takes two pears, and Mirka takes half of what remains in the mission. Thus, Ivan, Mirka, Ivan, Mirka, and finally Ivan, who took the last two pears, took them away.

Definitely. Who had more pears, in the end, and how many?

Correct answer:

I =  6
M =  8
d =  2

Step-by-step explanation:

$$\begin{gathered} m_5=2 \\ {m}_4=m_5\cdot 2=2\cdot 2=4 \\ {m}_3=m_4+2=4+2=6 \\ {m}_2=m_3\cdot 2=6\cdot 2=12 \\ {m}_1=m_2+2=12+2=14 \\ I=3\cdot 2=6 \end{gathered}$$

$$\begin{gathered} M=m_1-I=14-6=8 \\ M>I \end{gathered}$$

$d=M-I=8-6=2$

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