Stemson Kaiks
Feb 15
Four balls are simultaneously drawn from a bag containing three green balls and six blue balls,Find out how many combinations of drawing are possible if;there are exactly two green balls ?
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Feb 15
To find the number of combinations of drawing exactly two green balls, we can use the combination formula.
The number of ways to choose 2 green balls from 3 green balls is given by the combination formula: C(3, 2) = 3! / (2!(3-2)!) = 3.
The number of ways to choose 2 blue balls from 6 blue balls is given by the combination formula: C(6, 2) = 6! / (2!(6-2)!) = 15.
Therefore, the total number of combinations of drawing exactly two green balls is 3 * 15 = 45.
The number of ways to choose 2 green balls from 3 green balls is given by the combination formula: C(3, 2) = 3! / (2!(3-2)!) = 3.
The number of ways to choose 2 blue balls from 6 blue balls is given by the combination formula: C(6, 2) = 6! / (2!(6-2)!) = 15.
Therefore, the total number of combinations of drawing exactly two green balls is 3 * 15 = 45.
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