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REASONING
Select the missing number from the given...

Select the missing number from the given alternatives :

A

190

B

255

C

221

D

236

Text Solution

Verified by Experts

The correct Answer is:
B
Proceed clockwise starting with the lowest number in the following manner :
`7xx2+1=15`
`15xx2+1=31`
`31xx2+1=63`
`63xx2+1=127`
`127xx2+1=255`
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