How many 6's are there in the following series of numbers which are preceded
by 7 but not immediately followed by 9 ?
6 7 9 5 6 9 7 6 8 7 6 7 8 6 9 4 6 7 7 6 9 5 7 6 3
Answer : Option C
Explanation :
6 7 9 5 6 9 7 [6] 8 7 [6] 7 8 6 9 4 6 7 7 6 9 5 7[6] 3