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CBSE Class 10 Answered

A jar contains blue and green marbles The number of green marbles is 5 more than twice the number of blue if probability of drawing a blue one at random is 2/7 , how many blue and green marbles are there in the jar
Asked by manoj kumar | 23 Feb, 2013, 11:13: AM
Expert Answer
Let the number of blue marbles = x
As per the question, the number of green marbles would be 2x+5
 
So, there are 10 blue marbles and 25 (obtained on solving for 2x+5) green marbles in the jar. 
Answered by | 23 Feb, 2013, 07:19: PM
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