A) 190
B) 221
C) 236
D) 255
Correct Answer: D
Solution :
The pattern is, \[7\times 2+1=15\] \[15\times 2+1=31\] \[31\times 2+1=63\] \[63\times 2+1=127\] \[\therefore \]\[127\times 2+1=\]You need to login to perform this action.
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