SOLUTION: john's age and mary's age sum up to 48. 60years later,john's age was double that of mary. what are thier ages?

Question 1012420: john's age and mary's age sum up to 48. 60years later,john's age was double that of mary.
what are thier ages?
Found 2 solutions by fractalier, macston:
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Call John and Mary's age NOW, j and m. Then we have
j + m = 48, or j = 48 - m
Sixty years later,
j + 60 = 2(m + 60)
Now substitute in for j and get
48 - m + 60 = 2(m + 60)
108 - m = 2m + 120
This doesn't work...I think you meant six years later...
j + 6 = 2(m + 6)
48 - m + 6 = 2(m + 6)
54 - m = 2m + 12
42 = 3m
m = 14
j = 34
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
J=John's age; M=Mary's age
.
J+M=48
J=48-M
.
J+60=2(M+60)
48-M+60=2M+120
108-M=2M+120
-12=3M
-4=M
ANSWER 1: Mary is -4 years old.
.
J=48-M=48-(-4)=52
ANSWER 2: John is 52 years old.
.
CHECK:
J+60=2(M+60)
52+60=2(-4+60)
112=2(56)
112=112
.
There is no reasonable answer for this problem.
Please check your problem.
RELATED QUESTIONS
john's age and mary's age sum up to 48. 60years later,john's age was double that of mary. (answered by fractalier)
John is 5 years older than Mary. In 10 years, twice John�s age decreased by Mary�s age is (answered by josgarithmetic)
John is 10 years younger than two times Mary. Mary�s age is to her mother�s age as John�s (answered by stanbon,TeachMath,greenestamps)
The sum of the ages of John and Mary is 32. Four years ago, John was twice as old as... (answered by josgarithmetic,ikleyn)
In fifteen years time ,John Will be N years old.if Mary is 4 years older than John.What... (answered by josgarithmetic)
the sum of john's age and Mary's age is 36 years. John is 4 years younger than Mary. how... (answered by Math_Boss)
If Peter�s age + Paul�s age = 39 and Peter�s age + Mary�s age = 44 and Paul�s age +... (answered by ewatrrr,ikleyn)
Chloe is 5 years older than Mia and Emma is triple Chloe’s age. Double the sum of... (answered by josgarithmetic)
John is ten years older than Mary. Five years ago, John was double Mary's age. How old... (answered by Maths68)