Pine

How much of a mixed forest rangers want to cut down, if their head said:

"We only cut down pine trees, which in our mixed forest 98%. After cut pine trees constitute 94% of all trees left."

Correct answer:

p =  66.67 %

Step-by-step explanation:

$p=100\cdot (1-{\displaystyle \frac{100-98}{100-94}})=66.67\mathrm{\%}$

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