Let's denote Vanita's current age as X.

According to the problem, one year from today (which means X + 1 years old), Vanita will be twice as old as she was 15 years ago (which means 2 * (X - 15) years old).

So, we can set up the equation as follows:

X + 1 = 2 * (X - 15)

Solving this equation will give us Vanita's current age.

First, distribute the 2 on the right side of the equation:

X + 1 = 2X - 30

Then, subtract X from both sides to get:

1 = X - 30

Finally, add 30 to both sides to solve for X:

X = 31

So, Vanita is 31 years old today, which corresponds to option d.

Question

Let's denote Vanita's current age as X.

According to the problem, one year from today (which means X + 1 years old), Vanita will be twice as old as she was 15 years ago (which means 2 * (X - 15) years old).

So, we can set up the equation as follows:

X + 1 = 2 * (X - 15)

Solving this equation will give us Vanita's current age.

First, distribute the 2 on the right side of the equation:

X + 1 = 2X - 30

Then, subtract X from both sides to get:

1 = X - 30

Finally, add 30 to both sides to solve for X:

X = 31

So, Vanita is 31 years old today, which corresponds to option d.

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