The key to solving the problem is to find the standard number (that is, the multiple of 1). Generally speaking, whoever says it is several times the "who" in the question is determined as the standard number. Find the standard number after finding the sum of multiples. Find the number of another number (or numbers) according to the multiple relationship between another number (or numbers) and the standard number.
Law of solving problems: sum/multiple sum = standard number × multiple = another number.
Example: There are 1 15 trucks in the automobile transportation yard, of which 7 trucks are five times more than the minivan. How many trucks and cars are there in the transportation yard?
Analysis: There are 7 trucks that are more than 5 times of the minivan, and these 7 trucks are also within the total 1 15. In order to make the total number correspond to (5+ 1), the total number of vehicles should be (1 15-7).
The formula is (115-7) ÷ (5+1) =18 (vehicle), 18 × 5+7=97 (vehicle).
Extended data differential multiple problems
Differential multiple problem: the application problem of knowing the difference between two numbers and the multiple relationship between two numbers and finding out what two numbers are.
Law of solving problems: the difference between two numbers ÷ (multiple-1) = standard number × multiple = another number.
Example: There are two ropes. A rope is 63m long and B rope is 29m long, and the same length is cut off. As a result, the remaining length of rope A is three times that of rope B.. What are the remaining lengths of rope A and rope B? How many meters per person?
Analysis: Cut the same section of two ropes with the same length difference. The remaining length of rope A is three times that of rope B, but it is (3- 1) times more than rope B, and the length of rope B is the standard number. Equation (63-29) ÷ (3-1) =17 (m) … remaining length of rope b, 17 × 3=5 1 (m) … remaining length of rope a, 29-/kloc.