12, 42, 77, 117, 162, ?

12, 42, 77, 117, 162, ?

12, 42, 77, 117, 162, ?

a) 216

b) 212

c) 208

d) 218

e) 204

Sol:

12 + 30 = 42

42 + 35 = 77

77 + 40 = 117

117 + 45 = 162

162 + 50 = 212

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