Question

At preasent ,the sum of ages of father and daughter is 65 years. what will be the sum of thier ages after 7years
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Answer 1

Answer:

65+7*2=79 please mark it brainliest

Answer 2

Take the father’s age as x and the son’s as y. This can be represented by the following equations:

x + y = 60 (1)

The son will need to live y-x years to be as old as his father is now.

So x + y - x + y + y - x = 120

3y - x = 120 (2)

Add the 2 equations together

4y = 180

y = 45

x = 15

So the father is 45, and his son is 15.