A) 18
B) 36
C) 45
D) None of these
Correct Answer: D
Solution :
Let R, G and B represent the number of balls in red, green and blue boxes respectively. Then, \[R+G+B=108\] ? (i) \[G+R=2B\] ? (ii) \[B=2R\] ? (iii) From Eqs, (ii) and (iii), we have \[G+R=2\times 2R=4R\]or \[G=3R\] Putting \[G=3R\]and \[B=2R\] in Eq. (i), we get \[R+3R+2R=108\] Or, \[6R=108\] \[\therefore \,R=18\] So, the number of balls in the green box \[=G=3G=(3\times 18)=54.\]You need to login to perform this action.
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