a bag contains some balls that are either red or yellow there are 84 red balls in the - Maths - Probability

Question

a bag contains some balls that are either red or yellow there are
84 red balls in the bag if a ball is taken out of the bag without
looking the chances of it being red are 70% what is the number of
yellow balls in the bag?

Neha Sethi · Accepted Answer

Dear student
Let total balls=xand we have number of red balls=84A
T
Q70% of x=8470x100=84x=840070=120So, number of yellow balls=total balls-number of red balls=120-84=36
Regards

a bag contains some balls that are either red or yellow. there are 84 red balls in the bag. if a ball is taken out of the bag without looking the chances of it being red are 70%. what is the number of yellow balls in the bag?