Respuesta :

Answer:

25 days old

Step-by-step explanation:

7 days = 1 week

3 x 7 = 21

21 + 4 = 25

25 days old

Solution : -

  • 1 week = 7 days

  • 3 weeks = 3 × 7 = 21 days

  • 3 weeks and 4 days = 21 + 4 = 25 days