Comprehension Passage
Directions: These questions are based on the following arrangement of numbers. Read it carefully and answer the questions:
1 2 3 4 5 6 7 8 9 11 13 15 17 19 21 23 27 29 32 34 36 38 40
If all the prime numbers are deleted from the arrangement then how many elements less than 30 will be left?
1
9
2
8
3
7
4
10
5
Either 6 or 8