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father's age is 3times the sum of ages of his two children.After 5 years his age will be twice the sum of ages of two child.Find the ages for them.
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father's age is 3times the sum of ages of his two children.After 5 yea...
Let age of 2children be =X and Y
Father's age 3(x+y)
Age of children after 5years =x+5+y+5= x+y+10
Age of father = 2(x+y+10)=3(x+y)+5
2x+2y+20=3x+3y+5
2x-3x+2y-3y+20-5
-x-y+15 ×(-)
X+y-15=0
x+y=15
Wkt,3(x+y)=3(15)=45
therefore father's age is 45
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father's age is 3times the sum of ages of his two children.After 5 years his age will be twice the sum of ages of two child.Find the ages for them.
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