1445
241
49
13
Answer is Right!
Answer is Wrong!
The correct answer is (a) 1445.
The number series is 3, 5, 13, 49, 241, 1445, 10081. The numbers are generated by multiplying the previous number by 2 and adding 1. For example, 49 is 2 x 241 + 1.
1445 is not generated by this rule. It should be 2 x 241 = 482.
(b) 241 is generated by multiplying the previous number by 2 and adding 1.
(c) 49 is generated by multiplying the previous number by 2 and adding 1.
(d) 13 is generated by multiplying the previous number by 2 and adding 1.