There are 87 balls in a jar. Each ball is painted with at least one of two colors, red or green. It is observed that 2/7 of the balls that have red color also have green color, while 3/7 of the balls that have green color also have red color. what fraction of the balls in the jar has both red and green colors?
A. 6/14
B. 2/7
C. 6/35
D. 6/29
E. None of these
সঠিক উত্তরঃ
D.
6/29
Explanation:
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