If a mother is 20 years old when her baby is born how old will she be when she is twice as old as her child
in another 20 years
40
To find out how old the mother will be when she is twice as old as her child, we need to break down the problem into smaller steps.
Let's assume the mother's age when her baby is born is represented by "M," and the child's age is represented by "C."
At the time of the baby's birth, the mother is 20 years old, so we have:
M = 20
We need to determine the age at which the mother will be twice as old as her child. Mathematically, we could represent the situation as:
M + X = 2 * (C + X)
In this equation, "X" represents the number of years that pass since the time of the baby's birth, until the mother is twice as old as her child.
We can now solve the equation. First, let's substitute M with 20:
20 + X = 2 * (C + X)
Next, let's simplify the equation:
20 + X = 2C + 2X
Subtracting X from both sides:
20 = 2C + X
Finally, we can use the fact that the mother's age at the baby's birth is 20 (M = 20) to rewrite the equation as:
20 = 2C + X
Now we need additional information to find the age at which the mother will be twice as old as her child. Without the child's age, it is not possible to solve the equation.