Question

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​

Answer 1

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%

Answer 2

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%