Question

15 30 52 83 125 178 ?​

Answer 1

15 30 52 83 125 178 ?

a) 235

b) 246

c) 255

d) 165

e) None of these

Answer & Explanation

Answer – b) 246

Explanation :

15 + (4^2 – 1) = 30

30 + (5^2 – 3) = 52

52 + (6^2 – 5) = 83

83 + (7^2 – 7) = 125

125 + (8^2 – 11) = 178

178 + (9^2 – 13) = 246

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