Answer: The 10th row has tullips
Explanation:
You can do it in a next way:
the first row has tulips
the second row has roses
the third row has daises.
then the numbers:
1 + n*3 where n is an integer, are rows with tulips. (1, 1 + 3, 1 + 6, and so on)
2 + n*3 are rows with roses
3 + n*3 are rows with daisies.
Then the row number 10 is equal to:
1 + 3*3 = 10
so this is one of the rows that have tulips.