Bản dịch đề: Tuổi của Peter 8 năm trước bằng tuổi của anh trai mình 1 năm trước. Hiện tại, tổng số tuổi của họ là 47. Hiện tại Peter bao nhiêu tuổi?
Giải:
Anh trai hơn Peter số tuổi là:
\(1+8=9\left(tuổi\right)\)
Tuổi Peter hiện nay là:
\(\left(47-9\right):2=19\left(tuổi\right)\)
Vậy tuổi Peter hiện nay là: \(19\) tuổi.
11. 5 years ago the brother’s age was the same as the age of his sister 4 years later, the sum of his age 2 years later and his sister 8 years later is 97. What is the age of the sister today?
When Alan was born . His sister Teri was five years old and his brother Mark was two years old . If T represents Teri is age which of the following expressions can be used to find Alan is age now
Question 8:
The sum of age of mother and daughter is 47. Daughter is 25 years younger than mother. How old is mother?
Answer: Mother is ........ years old.
The sum of age of mother and daughter is 47. Daughter is 25 years younger than mother. How old is mother?
Answer: Mother is years old.
Who can answer this question? Threads like this: Seven years ago, the total number of 3-year-old mother is 48 years. Six years after her mother's age over the age of 30 and over adult son is 24 years old. calculate the current age of the mother. You remember all the offline presentation!
Who can answer this question? Threads like this: Seven years ago, the total number of 3-year-old mother is 48 years. Six years after her mother's age over the age of 30 and over adult son is 24 years old. calculate the current age of the mother. You remember all the offline presentation!
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( Giải giúp mk với)
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