Jones is now twice as old as he was 5 years ago and his mother is now 4 times as Jones. How old is his mother now?
Let's assume Jones' current age is J.
Twice as old as he was 5 years ago is J = 2*(J-5) = 2J - 10
The equation now becomes J = 2J - 10
Simplifying the equation, we get J = 10
Jones is currently 10 years old.
His mother's age would be 4 times Jones' age, so his mother is 4 * 10 = <<4*10=40>>40 years old.
Therefore, Jones' mother is now 40 years old. Answer: \boxed{40}.
To find Jones's age, we can start by assigning a variable to his current age. Let's say his current age is represented by "J."
According to the given information, Jones is now twice as old as he was 5 years ago. So, we can write this as an equation:
J = 2 * (J - 5)
Now, let's solve this equation to find J.
Expanding the equation:
J = 2J - 10
Combining like terms:
10 = 2J - J
Simplifying:
10 = J
Therefore, Jones's current age (J) is 10.
Now, we know that Jones's mother is four times Jones's age. So, we can multiply Jones's age by 4 to find his mother's age:
Mother's age = 4 * Jones's age
= 4 * 10
= 40
Therefore, Jones's mother is currently 40 years old.
Let's assume Jones' current age is represented by J and his mother's current age is represented by M.
According to the first statement, Jones is now twice as old as he was 5 years ago, which can be represented as:
J = 2(J - 5)
Expanding this equation:
J = 2J - 10
Moving all terms to one side:
2J - J = 10
Simplifying:
J = 10
Therefore, Jones is currently 10 years old.
According to the second statement, Jones' mother is now 4 times as old as Jones, which can be represented as:
M = 4J
Substituting the value of J:
M = 4 * 10
M = 40
Therefore, Jones' mother is currently 40 years old.