Question 1122998
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{{{((0.6*250 + 0.4*150)/(250+150))*100}}} percents.


Calculate it on your own.


Look into this formula attentively.  It has a feature to tell you about itself.


Hear attentively what it will tell you.


Look into its numerator. Then look into its denominator.


When you learn what the formula tells you, you will be able to solve such problems on your own.
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