Revealing His Edge

Lin Yuelan nodded and explained," In our hometown, when we encounter such a problem, we usually use the replacement method."

"Replacement method?" Everyone was puzzled.

Lin Yuelan continued," In Longyan Country, there's a language called Pinyin. This Pin yin table has a, b, c, etc. 26 single letters."

Lin Yuelan slowly explained the answers.

"These 26 letters are unknown numbers in mathematics. Therefore, the question given by the high priest just now, the price of the rooster, hen, and chick was 5 wen, 3 wen, and one-third of the price, respectively. So, this formula became: 5x+3y +1/3z =100. In this hypothesis, another integral number k was set. Then, x=4k, y=25- 7k, z=75+ 3k.