एक व्यक्ति ने दो भूखंडों में से प्रत्येक को 10,00,000 रुपये में बेचा। एक पर उसे 12% का लाभ हुआ जबकि दूसरे पर उसे 12% की हानि हुई। पूरे लेन-देन में उसे प्राप्त कुल लाभ या हानि का प्रतिशत ज्ञात कीजिए।

A merchant raised the price of his products by 32%. What percentage discount (rounded off to one decimal place) should he give so as to sell the products on a no profit, no loss basis?

A shopkeeper offers the following two schemes: I. Two successive discounts of 30% and 45%. II. Buy 4, get 5 free. The single percentage discount (rounded off to two decimal places) from each scheme, respectively, is: