Latest Tech Mahindra Aptitude Question SOLUTION: How many 4's are there in the following series which are preceded by 7, but are not preceded by 8? 3 4 5 7 4 3 7 4 8 5 4 3 7 4 9 8 4 7 2 7 4 1 3 6 a) 1 b) 2 c) 3 d) 4 e) More t