Xiaoli is 8 years old and her mother is 28 years old. When asked how old Xiaoli is, her mother is 6

I'll tell you how to calculate it.

The first step is to tell you the implicit point of this kind of question: that is, the question of age is always fixed. For example, if your mother is 28 years old and Xiaoli is 8 years old, then your mother is 20 years older than Xiaoli, and this will never change.

To do this kind of question, you must remember this one. No matter how old Xiaoli is, her mother will always be 20 years older than her.

The second step, if the mother is 6 times older than Xiaoli, it means that the mother is 5 times older than Xiaoli, right? Definitely. 6-1 = 5 times.

The third step, the rest is easy to do, my mother is 20 years older than Xiaoli, and my mother is 5 times older than Xiaoli, what does it mean? Explain that a multiple is 20 divided by 5, which is equal to 4. Xiaoli is a double, is 4 years old.

In the fourth step, when Xiaoli was 4 years old, her mother was 20 years older than Xiaoli, and her mother was 24 years old.

In the fifth step, we check whether we are doing it right. Xiaoli grew up from 4 years old to 4 years old, and when she was 8 years old. Mom is also 4 years older, 28 years old, the same as mentioned earlier. It shows that we did it right.

This question is solved. Hahaha, I'm so happy, isn't it?

Two points to note:

First, the issue of age, first find out the age difference between the two, this will never change.

Second, this type of question will involve the problem of multiples. That is, if Zhang San is 6 times that of Li Si, it means that Zhang San is 5 times that of Li Si. Multiples of the problem.

Third, the difference between the two is several years, and the difference between the two is several times. Divide them to find out how old a multiple is.

Fourth, it is easy to get any answer to the question of how old the multiple is.

Good luck with your studies

Method 1. Equation method.

28-8=20 First calculate the age difference between her and her mother, this will never change, no matter how many years later, her mother is 20 years older than Xiaoli, right?

6-1=5 age difference, 6 Xiaoli's age minus 1 Xiaoli's age, 5 Xiaoli's age should be equal to 20 years older than Xiaoli's mother.

20 5=4 The age difference divided by the multiple difference is equal to, and each part is 4 years old, which is Xiaoli's age.

Method two. Solve equations (don't write this if you haven't learned it.) But you can also do it outside of class. Sooner or later, you'll learn. ）

Suppose Xiaoli's mother is x years old and Xiaoli is y years old, and her mother's age is twice that of Xiaoli. Then: 1, x-y=28-8= 2, x y= can solve y= x= is the answer above.

Fill in the blanks yourself. Write according to the format. You can practice whether you understand it or not. If not, the method is the same as above. Thank you.

When Xiaoli was 4 years old, her mother's age was 24 years old. Mom's age is 6 times that of Xiaoli.

When Xiaoli was 5 years old, her mother was 29 years old, and her mother Xiaoli was 24 years old.

Solution: If Xiaoli's age is x, then mother's age is 4x.

According to the equation of the problem: 4x-x=29-5

3x=24x=8

4x=32A: Xiaoli's age is 8 years old, and her mother's age is 32 years old.

When Xiaoli's mother's age is 8 times that of Xiaoli, Xiaoli and age = (35-7) (8-1) = 4 years old.

Designed to be designed for x years.

8（7+x）=35+xx=-3

Yechun is Xiaoli when she is 4 years old, and her mother's age is 8 times that of Xiaoli.

Summary. Hello! We're happy to answer for you! 

Kiss. Let's assume that Xiaoli is x years old this year.

Then: x+24=4x, the solution is x 8.

When Xiaoli was 5 years old, her mother was 29 years old, and this year's mother's age was 4 times that of Xiaoli.

Hello! We're happy to answer for you! Kiss. Let's assume that Xiaoli is x years old this year. Then: x+24=4x, the solution is x 8.

So Xiaoli is 8 years old this year, and her mother is 8 + 24 = 32 years old this year. than the heart].

This year's mom and Xiaoli's age and is.

28 + 6 2 = 40 years old.

Mom's age = Xiaoli's age 4

40 (4+1) = 8 years old.

4 8 = 32 years old.

A: Xiaoli is 8 years old this year, and her mother is 32 years old.

She Xiaoli's age this year is x

x－6）＋（4x－6）＝28

5x－12＝28

5x＝40x＝8

Mom age: 8 4 32

38-8) (7-1) = 5 (years).

8-5=3 (years).

A: 3 years ago, my father was 7 times older than Xiaoli.

Analysis: According to the title, the mother's age is 3 times that of Xiaoli after X years.

Then according to the title, 6+x) 3 32+x, 18+3x 32+x, 3x-x 32-18, 2x 14, x 7, A: After 7 years, my mother's age is 3 times that of Xiaoli.

After X years, my mother is 3 times older than Xiaoli.

3(x+6)=32+x

Solve the equation: 3x+18=32+x

3x-x=32-18

2x=14x=7

A: After 7 years, my mother is 7 times older than Xiaoli.

Solution: After X years, my mother is 3 times that of Xiaoli.

6＋x）×3＝32＋x

18＋3x＝32＋x

2x＝14x＝7

A: After 7 years, my mother is 3 times older than Xiaoli.

After X years, my mother is 3 times older than Xiaoli.

According to the title:

3（6+x）=32+x

x = 7 A: 7 years later.

Set x years later, my mother is three times older than Xiaoli:

6+x)*3=32+x and then solve the equation to finally get x=7. The equation is correct.

32＋x）÷（6＋x）＝3

x 7 A: After 7 years, my mother's age is 3 times that of Xiaoli.

This kind of problem column equation is relatively simple.

After X years, my mother is 3 times older than Xiaoli.

3（6+x）=32+x

18+3x=32+x

2x=14x=7

Xiaoli is 6 years old this year, her mother is 32 years old, and in a few years, her mother will be 3 times older than Xiaoli?

6+x)x3=32+x

18+3x=32+x

2x = 14x = 7 years.

Summary. Mom is 50 years old this year, Xiao Ming is 22 years old this year, and a few years ago Mom was 8 times older than Xiao Ming.

3rd grade of primary school.

Ahh Wait a minute, dear, and I'll see another way.

I hope I can help my relatives.

Solution: Set Xiaoli x years old, mother 8x years old, 8x=x+28

8x-x=28

7x=28x=28÷7

x = 4 mom's age = 8x = 8 4 = 32 years old.

A: Xiaoli is 4 years old and her mother is 32 years old.

4 and 32 years old, I'm too witty.