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