New Workshop on Job Profile of RBI Grade B Officer by Susheel Ragade sir
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Question

Find out the wrong number in the following given number series :

21           32           54           86           131         186

A 32 Correct Answer Incorrect Answer
B 86 Correct Answer Incorrect Answer
C 186 Correct Answer Incorrect Answer
D 54 Correct Answer Incorrect Answer
E 131 Correct Answer Incorrect Answer

Solution

21 + 11 = 32 32 + 22 = 54 54 + 33 = 87 87 + 44 = 131 131 + 55 = 186

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