First, we need to determine the total number of trees, which was calculated in the previous question (ai-3) as 1120. Next, we identify which of the listed fruits bear multi-seed fruits: Lemon (multi-seed), Mango (single-seed), Coconut (single-seed), Chickoo (multi-seed), Orange (multi-seed). So, the multi-seed fruits are Lemon, Chickoo, and Orange. Their respective percentages are Lemon 15%, Chickoo 20%, and Orange 10%. The total percentage of multi-seed fruits is 15% + 20% + 10% = 45%. The number of trees bearing multi-seed fruits is 45% of the total trees: 0.45 * 1120 = 504.