Math, asked by sdfdsfs7639, 1 year ago

A box contains 4 red 5 blue and 6 green balls of identical size. two balls are drawn at random. the probability that one is blue and the other is green is?

Answers

Answered by kuldeepbhakar786
2
for blue=     5/15=1/3       and for for green=       6/15        and total is=                           1/3+6/15=11/15 
Answered by kaviyavpky
2

Step-by-step explanation:

total 15 balls

two balls are drawn at random

15C2=15*14/2*1=105

one blue ball and other is green=6*5=30

therefore,

probability=30/105=6/21=2/7

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