Three years ago, Nora was half as old as Mary is now. If Mary is four years older than Nora then Mary is years old now.
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Three years ago, Nora was half as old as Mary is now. If Mary is four years older than Nora then Mary is years old now.
Question 9:
Three years ago, Nora was half as old as Mary is now. If Mary is four years older than Nora then Mary is ............. years old now.
Question 10:
It took boys hours to clean a house. How many boys are needed to clean the house in hours?
The result is: ...... boys.
Jane is 15 years old. She is twice as old as Mary was when Jane was as old as Mary is now. How old is Mary now?
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Mary is 24 years old. She is twice as old as Bella was when Mary was as old as Bella is now.
How old is Bella now?
Ana's current age (a) is what maria's age was x years ago
a = 24 - x
x years ago, Maria's age (24 - x) was twice Ana's age (a - x)
2(a - x) = 24 - x
put 24 - x in for a in the second equation:
2(24 - x - x) = 24 - x
48 - 4x = 24 - x
24 = 3x
8 = x
Plug this back into a = 24 - x to find a, Ana's current age:
a = 24 - 8
Ana is currently 16.
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da ko biet giai con ghi bang Tieng anh!
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Alice’s mother is now four times as old as she. Four years ago, her mother was thirty years more than her. How old is Alice now?
dịch em trai ơi
đọc xơ qua chị giải dc bài này bằng tiếng anh đấy
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Mẹ của Alice bây giờ đã bốn lần so với mẹ. Bốn năm trước đây, mẹ cô đã được ba mươi năm nhiều hơn cô. Alice bây giờ bao nhiêu tuổi?
bn muốn hỏi j vậy
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Bn nhok nhân mã thiếu bn trai dịch hơi sai nha!
Dịch: Mẹ của Alice tuổi gấp 4 lần cô ấy. Bốn năm trước mẹ cô ấy hơn cô 30 tuổi.Hãy tính tuổi Alice bây giờ.
Bài này giải dễ thôi. Bn áp dụng công thức tính hiệu tỉ là ra ngay.
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my mother is 24 years old and 6 time as old I was many years ago. now she is three times as old as I am. how old is she now
When my mother was 24 years old, I was: 24:6=4 (years old)
==> The difference between my mother's age and my age that time was: 24 - 4 = 20 (years old)
Because the difference between my mother's age and my age never changes, so now, she is 20 years older than me.
We have a diagram: Bạn vẽ sơ đồ tuổi con hiện nay (My age now) với 1 phần, tuổi mẹ hiện nay (My mother's age now) với 3 phần bằng nhau như thế. (tự vẽ nha)
==> My mother's age now is: [20: (3-1)] * 3 = 30 (years old)
Answer: 30 years old
I have two sisters, Mary and Jane, and two brothers, John and Tom. Mary is nineteen. Jane is five years younger than Mary, but she is two years older than Tom. Tom is four years younger than me, and he is seven years younger than John. So how old are they? who are the twins ?
Mary is 19.
So Jane is: 19 - 5 = 14 ( years old)
Tom is: 14 - 2 = 12 ( years old)
You are: 12 + 4 = 16 ( years old)
And John is: 12 + 7 = 19 ( years old)
So Mary and John are the twins.
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Mary is 12 years old. Her father is 4 times as old as she.
Their average age is years old
Mary's father's age:
\(12\times4=48\) (age)
Whole their age:
\(12+48=60\) (age)
Their average age is:
\(60\div2=30\) (age)
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Tim has got three sisters-Beth, Mary and Alice. Beth is three years younger than Tim ang seven years younger than Mary . Alice is the youngest. She's six years old. She'one year younger than Beth.
alice is 6 years old
beth is 7 years old
tim is 10 years old
mary is 14 years old
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