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A jar contains 24 marble some are green and others are blue. If a marble is drawn at random from the jar the probability that it is green is 2/3 .find the number of blue balls in the jar.

Posted by Tanvi Sharma 4 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Arjun Keshari 4 years, 7 months ago

2Thank You

All In One 4 years, 7 months ago

Probability of green marble is 2/3. Probability of Blue marble = 1 - probability of green marble. = 1- 2/3 =1/3. No. Of Blue marble / total no. Of marble =1/3. 3 x no.of Blue marble = total no. Of marble. No.of Blue marble =24/3=8. So, no. Of marble is 8.

2Thank You

All In One 4 years, 7 months ago

No. Of Blue marble is 8

1Thank You

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CBSE > Class 10 > Mathematics