Skillful candy

New Year, all schools and units are on holiday, this is not, my brother is carrying a bucket of candy.

"Taro, see what my brother brought to you!" He shook his candy. "Want to eat?"

I looked at a full bucket of sugar, and I couldn't help but feel the auspicious words: "Congratulations for getting rich, candy is coming!" Then I stood up and "grabbed" the sugar. Unexpectedly, my brother raised his hand and I rushed. I said good things, "This person is loved, the flowers are blooming, the innocent wit guy who sees the puncture in the car will give me the sugar!" I jumped, my brother raised his hand higher, and I again Got empty.

"Hey, this kind of broken sugar, who is rare, I will go to the supermarket tomorrow to buy better sugar!" I said eloquently.

"Hey, isn't it?" said, his brother deliberately peeled off a soft candy and put it in his mouth and chewed it. The lychee taste immediately filled the room and I was drooling. I know that my brother's "old problem" has been committed again: then his things must be answered, or language, or math, or English. I took the pencil and the book and listened to it with a tread of 120,000 points.

My brother took my Olympiad book and looked at it casually, and suddenly found a question.

"Cough, listen well. A, B, C three out of the same amount of money to buy a few kilograms of fruit, when the apples, A and B are more than 7.5 kilograms than C, so A and B should give C 6 yuan. How many yuan per kilogram of apple?"

"You have to think about it before you answer, or these sugars..." Brother shakes the candy box and smiles happily, as if to tease me is his greatest pleasure.

The question says that A, B, and C come out with the same amount of money, so the apples that the three deserve are the same. A. C. took 7.5 kilograms. Some of the 7.5 thousand Kerry is deserved, and the rest is C, and B is the same. Therefore, the apple kilograms of A and B can be divided into three equal parts, each of which is 7.5 × 2 ÷ 3 = 5, that is, A and B each take 7.5-5 = 2.5 of C. Then the unit price of Apple is 6÷2.5=2.4. Following this line of thinking, I quickly listed the following formula:

6÷

=6÷

=6÷2.5

=2.4

A: 2.4 yuan per kilogram of apple.

I took the answer to my brother, and my brother turned over the reference answer. After a long time, I said, "Well, it’s good, it’s right. I didn’t expect you to be smart, right, it’s the sister of your genius brother. This sugar will be for you."

I hold the sugar, I thought, this is the credit of mathematics!

Grade 3 of Haimen Dongzhou Middle School, Nantong City, Jiangsu Province: Yu Yaoyao