Read the row of digits below from left to right.
3 2 0 7 6 0 5 1 0 8 2 0 4 9 0 6 0 3 4 0 6 1 2 0 7
How many 0s in this row have either 2 or 6 directly before them?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 5
Check every 0 in the row: the digit just before it must be 2 or 6.
Place 3: 2 0 7 — counts
Place 6: 6 0 5 — counts
Place 9: 1 0 8 — does not count (preceded by 1)
Place 12: 2 0 4 — counts
Place 15: 9 0 6 — does not count (preceded by 9)
Place 17: 6 0 3 — counts
Place 20: 4 0 6 — does not count (preceded by 4)
Place 24: 2 0 7 — counts
So the answer is 5.