state gov UKSSSC Graduate Level Mock Test 2021 Logical Reasoning Arrangement and Pattern Number Arrangement
Consider the following number sequence:
1 21 19 3 9 2 17 11 9 2 8 62 31 33 86 7 49 52 5 6 28
How many numbers are there in the above series which are both followed even number and preceded by its factor?
1
1
2
2
3
3
4
4