The number of people who grow potatoes is 3 times the number that grow sugar beet.
⇒ 48 + x = 3( x + 12)
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Solve for x :
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48 + x = 3( x + 12)
48 + x = 3x + 36
2x = 12
x = 6
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People who do both grow either.
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Number of people who does not grow potato or sugar beets = 100 - 48 - 12 - 6 = 34
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Answer: The answers are 6 and 34.
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"6" is inbetween "48" and "12".
"34" is outside the two circles.
