box has hundred Blue balls 50 red balls and 50 black balls 25% of blue walls and 50% red balls are taken away then percentage of black ball becomes
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Answered by
3
Step-by-step explanation:
After removing 25% of blue balls,
total blue balls left = 75% of 100
= 75×100/ 100
= 75
After removing 50% of red balls,
total red balls left = 50% of 50 = 50×5/ 100
= 25
Therefore, Required percentage
= 50(75+25+50)×100
= 50 / 150×100
=33 1/3%
Answered by
1
Answer:
33 1/3%
Step-by-step explanation:
After removing 25% blue ball = 75% of 100
= 75 × /
=75
After removing 50% of red balls = 50% of 100
=50×5/100
= 25
Required percentage=50(75+25+50)×100
=50/150×100
=33 1/3%
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