| Direction: Insert the correct missing number from the choices given below. |
A) 190
B) 221
C) 236
D) 225
Correct Answer: D
Solution :
We have \[7\times 2+1=15,\] \[15\times 2+1=13,\] \[13\times 2+1=63,\] \[63\times 2+1=127.\] So, missing number \[=127\times 2+1=225.\]
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