SOLUTION: John has 5 children who's age differ by one year if the sum of their age is 15y ears find the age of the oldest child

Algebra ->  Customizable Word Problem Solvers  -> Age -> SOLUTION: John has 5 children who's age differ by one year if the sum of their age is 15y ears find the age of the oldest child       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1038374: John has 5 children who's age differ by one year if the sum of their age is 15y ears find the age of the oldest child
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +a+ = the age of the youngest child
+a+%2B+%28a+%2B+1%29+%2B+%28a+%2B+2%29+%2B+%28a+%2B+3%29+%2B+%28a+%2B+4%29+=+15+
+5a+%2B+10+=+15+
+5a+=+5+
+a+=+1+
and
+a+%2B+4+=+5+
The oldest child is 5
-------------------
check:
+1+%2B+2+%2B+3+%2B+4+%2B+5+=+15+
+15+=+15+
OK