1. How many 7’s are there in the following series which are preceded by 6, which is not preceded by 8 ?
8 7 6 7 8 6 7 5 6 7 9 7 6 1 6 7 7 6 8 8 6 9 7 6 8 7
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By: anil on 05 May 2019 01.40 am
There are 3 such 7 preceeded by which is not preceeded by 8.
8 [u]7 6 7[/u]8 6 7[u]5 6 7[/u] 9 7 6 [u]1 6 7[/u] 7 6 8 8 6 9 7 6 8 7
Therefore, the correct option is option D.
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8 [u]7 6 7[/u]8 6 7[u]5 6 7[/u] 9 7 6 [u]1 6 7[/u] 7 6 8 8 6 9 7 6 8 7
Therefore, the correct option is option D.