Solution
The series is 50 + 1 = 51, 51 2 = 47, 47 + 3 = 56, 56 4 = 40, 40 + 5 = 65, 65 6 = 29. Hence, there should be 40 in place of 42
The series is 50 + 1 = 51, 51 2 = 47, 47 + 3 = 56, 56 4 = 40, 40 + 5 = 65, 65 6 = 29. Hence, there should be 40 in place of 42