Question

plzz ans this question as soon as possible

Answer 1

hey

here is your answer

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let the number of white marbles = w  

let the # of blue marbles = b  

let the # of green marbles = g  

=> b + w + g = 54  

Probability of an event = # of ways an event can occur / total # of outcomes   P(b) = 1/3  

[ Number of ways it can happen: b (there are b blues)  

Total number of outcomes: (b + w + g) (there are 54 marbles in total) ]  

=> b / (b + w + g) = 1/3 ---------------------> (i)  

P(g) = 4/9  

=> g / (b + w + g) = 4/9 ------------------------> (ii)  

(i) + (ii) => (b + g) / (b + w + g) = 1/3 + 4/9 = (3 + 4)/9 = 7/9  

=> 9(b + g) = 7(b + w + g) = 7 x 54  

=> b + g = 42 marbles (blue and green)  

or white marbles w = 54 - 42 = 12  

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hope this helps

thanx and be brainly................................................................

Answer 2

Hlo friend

Here ur answer

The total number of marbles = 54.

The probability of selecting to a blue marble = 4/9.

Number of blue marbles = 54 * 4/9

= 24.

The probability of selecting to a green marble = 1/3

Number of green marble = 54 * 1/3

= 18.


Probability of white marbles =24+18

=42

= 54 - 42

= 12.