sally who is sue's mother is 4 times older than sue but in 20 years sally will be older twice.how old is sally and sue
To find out how old Sally and Sue are currently, let's work through the information given step by step:
Let's assume that Sue's current age is "x" years.
By reading the first part of the question, we find that Sally is 4 times older than Sue. This means Sally's current age is 4 times Sue's age, which can be expressed as 4x.
The second part of the question states that in 20 years, Sally will be older twice. This means that we need to calculate Sally's age in 20 years and compare it to Sue's age at that time.
In 20 years, Sally's age will be 4x + 20 (currently 4x + 0, but adding 20 years).
According to the information given, Sally's age in 20 years will be twice as old as Sue's age in 20 years. We can express Sue's age in 20 years as x + 20.
So, we can set up an equation:
4x + 20 = 2(x + 20)
Now, let's solve this equation to find the value of x, which represents Sue's current age:
4x + 20 = 2x + 40
2x = 40 - 20
2x = 20
x = 20/2
x = 10
Therefore, Sue is currently 10 years old.
To find Sally's current age, substitute Sue's age into the equation:
Sally's age = 4x = 4 * 10 = 40
Therefore, Sally is currently 40 years old.