Count the number of F’s in the sentence. Count them only once. Do not go back and count them again.
FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS.
Answer
There are 6 ‘F’s in the sentence.
One of average intelligence finds 3 of them. If you spotted 4, you’re above average. To see 5 is rare. If you found 6, you are probably a genius. There is no catch. Most people forget the ‘OF’s. The human brain tends to see them as ‘V’ instead of ‘F’.