Start by finding out how much he sold on the two days. That will be;
Monday: 1/3 x 30= 10 cards
Tuesday: 3/2 x 30= 45 cards
From the above, you can see that he sold more than 30 cards on Tuesday. But less than 30 on Monday. So the correct answer is H.
He sold fewer cards than his goal on Monday and more cards than his goal on Tuesday. Hope I helped. Good luck