15 24 35 50 71 ?
Answer : Option C
Explanation : The pattern is :
15 + 9 = 24
24 + 11 (= 9 + 2) = 35
35 + 15 (= 11 + 4) = 50
50 + 21 (= 15 + 6) = 71
71 + 29 (= 21 + 8) = 100
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15 24 35 50 71 ?
The pattern is :
15 + 9 = 24
24 + 11 (= 9 + 2) = 35
35 + 15 (= 11 + 4) = 50
50 + 21 (= 15 + 6) = 71
71 + 29 (= 21 + 8) = 100