Answer:
The number of black ink pen are 15 pens.
Step-by-step explanation:
As given
Jared bought a package of pens containing 20 pens.
[tex]if\ \frac{3}{4}\ of\ the\ pens\ have\ black\ ink.[/tex]
Thus
[tex]Number\ of\ black\ ink\ pens = \frac{3}{4}\times Total\ number\ of\ pens[/tex]
Putting the value
[tex]Number\ of\ black\ ink\ pens = \frac{3}{4}\times 20[/tex]
Number of black ink pens = 3 × 5
= 15 pens
Therefore the number of black ink pen are 15 pens.