1.

1). 112). 353). 504). 77

Answer»

The pattern of the original NUMBER series is

7 + 21 = 9

⇒ 14 + 22 = 18

⇒ 21 + 23 = 29

⇒ 28 + 24 = 44

35 + 25 = 67

According the pattern of the above series the number series starting from the given number would be as:

⇒ A = 9 + 21 = 11

B = 18 + 22 = 22

⇒ C = 27 + 23 = 35

⇒ D = 36 + 24 = 52

⇒ E = 45 + 25 = 77

∴ The required number in place of A would be 11


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