29. In a consignment store, apples were sold for 60 cents per 1 kg on the first day. On the second day, after the price reduction, they sold 50% more apples than on the first day, and revenue increased by 12.5%. What was the price of apples after the reduction?
29. Let $a$ kg of apples be sold on the first day, then the revenue on that day was $60 a$ k. After the price reduction on the second day, the revenue was $60 a \cdot 1.125$ k. and they sold $1.5 a$ kg of apples. The price per kg of apples was $60 a \times 1.125 : 1.5 a = 45($ k. $)$.