This coating is considered as unit 1.
Then the price of the coat is160/(1+3/5) =160/(8/5) =100 yuan.
Pants = 160- 100=60 yuan.
Equation:
If the coat is one yuan, the pants are 3/5a yuan.
a+3/5a= 160
A= 100 yuan
Pants are 160- 100=60 yuan.
Xiaoping's age this year is 3 points 1 of her mother's. Two years ago, the age difference between mother and son was 24 years old. How old is Xiaoping after four years?
Suppose the mother's age is A this year and Xiaoping's age is 1/3a.
a- 1/3a=24
2/3a=24
A=36 years old
The age gap remains the same.
Xiaoping is 36× 1/3= 12 years old this year.
Four years later, Xiaoping's age is 12+4= 16 years old.
Arithmetic:
Mother's age is 24/(1-1/3) = 24/(2/3) = 36 years old.
Xiaoping is 36× 1/3= 12 years old this year.
Four years later, Xiaoping's age is 12+4= 16 years old.