Question

Dad is 10 years older than his three sons ages combined. In how many years will dad's age be same as ages of his sons combined?

Thanks for the anwser! Sorry ofr the grammar mistakec and unclarity of the question :(

Answer 1

Currently:

`D = A + B + C + 10 qquad square`

In `y` years time:

`D + y = (A +y) + (B + y) + (C + y)`

`implies D + y = A + B + C + 3 y qquad triangle`

`triangle - square implies`:

`y = 3 y - 10 implies y = 5`