Find the missing numbers :9, 18, 36, ? 144

1.	Find the missing numbers :9, 18, 36, ? 144
Answer» As per series a, ak, ak², ak³, ....... a = 9+, k = 2 ak³ = 9 × 2³= 72 Ans. 72

Answer»

As per series a, ak, ak², ak³, .......

a = 9+, k = 2

ak³ = 9 × 2³= 72

Ans. 72

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