I go to teach in the morning

I go to teach in the morning
and my student brings two pieces to play for me.
Each of them is one page long
but the first one has chordal texture of eighth-notes
while the other is polyphonic with sixteenth-notes.
​My student is struggling with playing
correct notes of the polyphonic piece
but the other one goes fine.
I ask him: ​How much time
did you spend on practicing it?
And the student says:
About the same time as the other piece.
Then I ask him to look at both pages and count
the approximate number of notes in each piece.
It turns out ​the polyphonic piece has
three times more notes on that page.

Does that mean he should spend
​three times as much time practicing it
​as the other one?

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Ausra's Harmony Exercise:
​Diatonic Sequence in F Major (I-I42-IV6)

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