In the following number series how many such 7's are there which are immediately preceded by a pair of numbers whose product is more than the product of pair of numbers immediately following 7?2 2 7 1 3 9 4 8 7 6 5 4 2 8 3 5 7 4 6 5 9 7 8 6 4 3 9 7 4 6 5 2