thirty percent of the 200 passengers sat alone, into how many parts were the passengers divided?
This question just does not make sense.
if 30 percent sat alone,that is 60 parts. Now, the other 120 persons not sitting alone...they could be sitting in one group, or 60 groups of pairs (lovebirds), or 40 groups of three, or any such combination. I don't have a clue what is being asked.