Question 1030130: A and his grandfather 's differ in their age by 50 year, after 6 year ,if sum of their ages is 152, their present age are.
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! A and his grandfather 's differ in their age by 50 year,
A = g-50
or
A - g = -50
after 6 years, if sum of their ages is 152, their present age are.
(A+6) + (g+6) = 152
A + g + 12 = 152
A + g = 152 - 12
A + g = 140
Use elimination with these two equations
A + g = 140
A - g = -50
------------addition eliminates g, find a
2A = 90
A = 90/2
A = 45 yrs
then
g = 45 + 50
g = 95 yrs is Grandpa's age
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:
Check this in the statement
"after 6 years, if sum of their ages is 152, "
45+6 + 95+6 = 152
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