Respuesta :

Answer:

12 pens

Step-by-step explanation:

25% basically means 25/100 which is simplified to 1/4. Now if 3 pens are 1/4 of all the pens, then you multiply 3 by 4 to give you 12 pens in all.

Answer:

Alex has 12 pens altogether !

Step-by-step explanation:

- 25% = 25/100

- 25% × 4 = 100%

- 3 × 4 = 12