How many 7s immediately preceded by 6 but not immediately followed by 4 are there in the following series? 7 4 2 7 6 4 3 6 7 5 3 5 7 8 4 3 7 6 7 2 4 0 6 7 4 3
A
One
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B
Two
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C
Four
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D
Six
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Solution
The correct option is A Two 7 4 2 7 6 4 3 6 7 5 3 5 7 8 4 3 7 6 7 2 4 0 6 7 4 3 There are 2 such 7s in the series that are immediately preceded by 6 and not immediately followed by 4. Answer is Option B.