A mixture of green balls and blue balls, 25% by number of blue balls mass of each blue ball is 40 grams and that of each green ball is 20 grams . find the mass percentage of blue balls
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Answer:
the answer is 40%
Explanation:
lets suppose there are 100 balls, then the number of blue balls will be 25.
mass %age of blue balls= mass of blue balls/ total mass * 100
= 25*40/(25*40) + (75*20) *100
= 40%
hope this helped!!
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