Posted by **were here** on Saturday, March 17, 2012 at 11:40pm.

if a boy is 4 years less than twice his sisters age and the sum of the age is 11 how old is he

- math -
**john**, Sunday, March 18, 2012 at 12:32am
go through each of the possibilities of getting to 11. 1+10 2+9 3+8 4+7 and so on. think of what you are looking for, twice the girls age will be four more than the boys age.

- math -
**Steve**, Sunday, March 18, 2012 at 3:15pm
or, using algebra

b+s=11

b=2s-4

2s-4+s=11

3s=15

s=5

so, b=6

check:

6=2*5-4

## Answer This Question

## Related Questions

- Math - Sheila's age is two years more than twice Nicole's age. The sum of their ...
- math - A. A woman was 30 years old when her daughter was born.Her age is now 6 ...
- math - 5 yrs ago Montys age was 5 years less than twice Rachels age. In 3 years...
- vivekanand H s SCHOOL - the difference of ages between 2 sisters is 10 years, 15...
- math - John's age is seventeen years less than twice Isabella's age. Together, ...
- math - 1. Lisa is 15 years old and her father is 40. How many years ago was the ...
- algebra - 5 yrs ago Montys age was 5 years less than twice Rachels age. In 3 ...
- math - your brother jack will be 2 years from being twice as old as your sister ...
- Mathematics 3 - Aris is twice as old as Rico while Jay is 24 years younger than ...
- Algebra - Aris is twice as old as Rico while Jay is 24 years younger than Aris. ...

More Related Questions