Posted by **justin** on Friday, April 16, 2010 at 1:24am.

this year Ben is 4/7 as old Glen. Fifteen years fromnow Ben will be 3/4 as old as Glen. At that time he sum of thier ages will be 63. How old are Ben and Glen now?

- math -
**Reiny**, Friday, April 16, 2010 at 8:23am
You have more information than is needed

let Glen's present age be x

then Ben's present age is 4x/7

in 15 years:

Glen will be x+15

Ben will be 4x/7 + 15

We are told

x+15 + 4x/7+15 = 63

7x + 105 + 4x + 105 = 441

11x = 441 - 210

11x = 231

x = 21

So Glen is now 21 and Ben is now 12

The fact that "Fifteen years fromnow Ben will be 3/4 as old as Glen" was not needed, but confirms our answer.

## Answer this Question

## Related Questions

- math - This year Ben is 4/7 as old as Glen. Fifteen years from now, Ben will be...
- Math - the sum of the ages of rex, ben and alfred is 36 years, two years ago, ...
- Math - the sum of the ages of rex, ben and alfred is 36 years, two years ago, ...
- math - in 5 years art will be twice as old as ben. 5 years ago art was 3 times ...
- ohs - Sara is six years older than Ben. Five years ago, Sara was one and a half ...
- math - ben and glen are practicing short golf shots. they are aiming for a flag...
- Math - Anna is 3 years older than Laura. The product of thier ages is double the...
- math - Ke is twice as old as Amy. Seven years ago, the sum of their ages was 31...
- math - Ke is twice as old as Amy. Seven years ago, the sum of their ages was 31...
- Math alg2! - 1.)Mike is 5 years more than twice as old as Tom. The sum of their ...

More Related Questions