WBPSC 2016 Solved Paper
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Question : 90 of 200
Marks:
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How many 9' s are sandwiched between 6 and 7 in the following sequence :
6 9 6 9 9 6 6 7 6 9 7 9 6 6 9 7 7 9 6 6 7?
6 9 6 9 9 6 6 7 6 9 7 9 6 6 9 7 7 9 6 6 7?
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