Question

(a) 25%
(b) 33 1/3%
(c) 40%
(d) 50%
8. A box has 100 blue balls, 50 red balls and 50 black balls. 25% of blue balls and 50% of red balls are taken away.
Then, percentage of black balls becomes​

Answer 1

Answer:

percentage of black ball=

=25%