Question

If you are 16 years old now, which equation could be used to solve for your age, F, 15 years from now

A. 16 x F= 15
B. 16-15=F
C. 16+F=15
D. 16+15=F

Answer 1

You add 15 years to your age so
D. 16 + 15 = F

Answer 2

Suppose age after 15 years is F.

Present age is 16 years.

Now if we want to find the age after 15 years , we will have to use following formula:

Age after 15 years = Present age +15

We already know present age is 16 years, so plugging this in above formula,

we have

Age after 15 years = 16 + 15

So the final equation becomes:

F=15+16

Answer: Option D. F=15+16