# File lib/annoy.rb, line 95
 95:   def Annoy.numeric_question(factor=:medium)
 96:     equation = answer = 0
 97:     while answer < 10
 98:       vals = [rand(@@randsize[factor])+1, 
 99:               @@operators[factor][ rand(@@operators[factor].size) ],
100:               rand(@@randsize[factor])+1 ]
101:       equation = "(%d %s %d)" % vals
102:       answer = eval(equation)
103:     end
104:     [equation, answer]
105:   end