Father's age is 3.2 times that of Xiao Ming, and mother's age is 2.6 times that of Xiao Ming. It is known that father is 9 years older than mother, Xiao Ming______ I'm 40 years old

Father's age is 3.2 times that of Xiao Ming, and mother's age is 2.6 times that of Xiao Ming. It is known that father is 9 years older than mother, Xiao Ming______ I'm 40 years old

The answer is: Xiaoming is 15 years old. So the answer is: 15

Xiao Ming's family is 63 years old. His father is 25 years older than Xiao Ming and his mother is 2 years older. How old is Xiao Ming this year
Xiao Ming's family is 63 years old. His father is 25 years older than Xiao Ming and his mother is 2 years older. How old is Xiao Ming this year

Solution: Xiaoming is x years old, his father is (x + 25) years old, and his mother is (x + 25 + 2) years old
Column: x + (x + 25) + (x + 25 + 2) = 63
This equation should be able to solve, in fact, the equivalent relations are in the problem, usually in the "than" after the word is the unknown X

His father's age is 9 times that of XiaoCong, and his mother's age is 7.5 times that of XiaoCong. His father is 6 years older than his mother, and XiaoCong is a child this year______ I'm 40 years old

Suppose XiaoCong is x years old, then: 9x-7.5x = 6, & nbsp; & nbsp; 1.5x = 6, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 4; a: XiaoCong is 4 years old, so the answer is: 4

His father's age is 9 times that of XiaoCong, and his mother's age is 7.5 times that of XiaoCong. His father is 6 years older than his mother, and XiaoCong is a child this year______ I'm 40 years old

Suppose XiaoCong is x years old, then: 9x-7.5x = 6, & nbsp; & nbsp; 1.5x = 6, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 4; a: XiaoCong is 4 years old, so the answer is: 4