First number divisible by 3 that is greater than or equal to 50 is 51.
Last number divisible by 3 that is less than or equal to 500 is 498.
Number of terms in the sequence is calculated as:
(498 - 51) / 3 + 1 = 447 / 3 + 1 = 149 + 1 = 150
Thus, the correct answer is:
Answer: 150





The Art Institute of Chicago has recreated the famous painting "the bedroom" by Vincent van Gogh.
Carefully observe the image which will disappear after 30 seconds and answer the two following questions. The image cannot be viewed again.
