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swapnil

· started a discussion

· 1 Months ago

explain plz....

Question:
In the following series, how many 9 are there which are neither preceded by 7 nor followed by 5 ?

7, 9, 5, 5, 9, 7, 7, 9, 5, 5, 5, 7, 9, 5, 5, 7, 7, 9, 5, 7

Options:
A) One 
B) Three 
C) Two 
D) Four 
Solution:
Ans: (a)

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