1.

Answer»

Solution

Round off the values to the nearest whole number.
Let the UNKNOWN percentage be X.
X % of $(230 \TIMES 8 - 560) = 960$
X % of $(1840 - 560) = 960$
X % of $(1280) = 960$
X % $= \FRAC{960}{1280}$
X = 75 %
Option E is the correct answer.



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