From the condition, every 6 apples are equivalent to 8 pears. You just have 12 apples in the basket; the shortage to 18 apples is 6 apples, that are equivalent to 8 pears. So, you can place 12 apples + 8 pears to the basket. ANSWER. You can place 8 pears to the basket, in addition to 12 apples.