Hey plz ansr these quickly!!
I need it urgent!!
I will mark u brainly n plz ansr it correctly!!
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No. of white balls=15
let the no. of black balls = x
probability of drawing a white ball = 15/(15+x)
probability of drawing a black ball = x/(15+x)
According to given condition-
x/(15+x)=3*15/(15+x)
x=3*15
=45
therefore the no. of black balls = 45
let the no. of black balls = x
probability of drawing a white ball = 15/(15+x)
probability of drawing a black ball = x/(15+x)
According to given condition-
x/(15+x)=3*15/(15+x)
x=3*15
=45
therefore the no. of black balls = 45
arnavaryansingh:
plz marks as a brainlist
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i think it help you if yes give brainli
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