Question
There were 312 red, white and green balls in a packet. Given that there were 137 more red balls than green balls and 76 more white balls than green balls, how many green balls were there in the packet?
4 m

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There were 312 red, white and green balls in a packet. Given that there were 137 more red balls than green balls and 76 more white balls than green balls, how many green balls were there in the packet?