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The probability of selecting a red …

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The probability of selecting a red ball at random from a jar that contains only red, blue and orange ball is 1/4. the probability of selecting a blue ball at random from the same jar is 1/3. If the jar contains 10 Orange balls, find the total number of balls in the jar.

Posted by Sneha Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Rajan Tomar 6 years, 10 months ago

Total balls = 24

0Thank You

Anshu Rai ? 6 years, 10 months ago

let the total no. of balls be x. P(E) of red balls = 1/4 Total red balls =x/4 P(E) of blue balls =1/3 Total red balls = x/3 Total balls =x x/3+x/4+10=x 3x+4x+120/12=x 7x +120=12x 120=12x-7x 120/5=x x=24

1Thank You

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CBSE > Class 10 > Mathematics