Verified answer

Answer:

Daughter is 10 years old and mother is 40 years old

Step-by-step explanation:

Let present age of daughter be x.

So 5 years ago her age =x−5

So 5 years ago her age =x−5Her mother's age is 7(x−5)

So 5 years ago her age =x−5Her mother's age is 7(x−5)Including 5 years from past to present and then to future =10

So 7x−35+10=3(x−5+10)

• 7x−25=3x+15
• 4x=40
• x=10

so daughters age=10

mother's age=4×10=40.