Quiz worksheet featuring number and shape pattern problems for students to solve.

Final Answer:
D) 22

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Explanation:
Let’s go step by step.

On day 1, Cynthia has 4 pennies.
Each day, she adds 6 more pennies.

So:
- Day 1: 4
- Day 2: 4 + 6 = 10
- Day 3: 10 + 6 = 16
- Day 4: 16 + 6 = 22
- Day 5: 22 + 6 = 28

Wait — hold on! The question asks: *how many pennies will Cynthia have on the fifth day?*
That means after adding on day 5, or at the end of day 5?

Let’s read carefully:
> “On day one… she has only 4 pennies. Each day she adds 6 pennies…”

So:
- Start of day 1: 4
- End of day 1 (after adding): 4 + 6 = 10
But the wording says: *“On day one… she has only 4 pennies.”* → That likely means at the start of day 1, before adding.

Then:
- Day 1: starts with 4, adds 6 → ends with 10
- Day 2: starts with 10, adds 6 → ends with 16
- Day 3: starts with 16, adds 6 → ends with 22
- Day 4: starts with 22, adds 6 → ends with 28
- Day 5: starts with 28, adds 6 → ends with 34

But none of the options is 34. So maybe the problem means:
She *starts* day 1 with 4, and on each day including day 1, she adds 6 — but the count given is *after* the addition for that day.

Let’s test that interpretation:

- After day 1: 4 + 6 = 10
- After day 2: 10 + 6 = 16
- After day 3: 16 + 6 = 22
- After day 4: 22 + 6 = 28
- After day 5: 28 + 6 = 34 → still not an option.

Wait — look at the answer choices: A) 16, B) 10, C) 28, D) 22

Maybe the question means:
She has 4 pennies on day 1 (i.e., that’s her total at the end of day 1), and then each *next* day she adds 6.

That would be:
- Day 1: 4
- Day 2: 4 + 6 = 10
- Day 3: 10 + 6 = 16
- Day 4: 16 + 6 = 22
- Day 5: 22 + 6 = 28

Then on day 5, she has 28 → choice C.

But why would day 1 be 4 *without* adding? The sentence says:
> “On day one of having her piggy bank, Cynthia has only 4 pennies. Each day she adds 6 pennies…”

This strongly suggests:
- Day 1 begins with 4 (initial amount).
- Then, *each day* (including day 1?), she adds 6.

But standard interpretation in such problems:
The initial amount is before any additions. Then, after day 1 (i.e., at the end of day 1), she has added once.

So:
- After 0 days: 4
- After 1 day: 4 + 6×1 = 10
- After 2 days: 4 + 6×2 = 16
- After 3 days: 4 + 6×3 = 22
- After 4 days: 4 + 6×4 = 28
- After 5 days: 4 + 6×5 = 34

Still no match.

Wait — maybe “on the fifth day” means *during* day 5, before adding? Unlikely.

Let’s check the answer choices again. Option D is 22. That equals 4 + 6×3 = 22 → after 3 additions.

What if the counting is:
- Day 1: 4 (no add yet)
- Day 2: 4 + 6 = 10
- Day 3: 10 + ’t = 16
- Day 4: 16 + 6 = 22
- So on day 4, she has 22.

But question says *fifth day*.

Hold on — maybe it's a trick: “On day one… she has 4 pennies.” Then “each day she adds 6” — meaning starting *from day 2*, she adds 6. So:
- Day 1: 4
- Day 2: 4 + 6 = 10
- Day 3: 10 + 6 = 16
- Day 4: 16 + 6 = 22
- Day 5: 22 + 6 = 28

→ 28 is option C.

And 28 is listed. So likely answer is C) 28.

But earlier I said D) 22 — that was a mistake.

Let me re-read the problem exactly:

> On day one of having her piggy bank, Cynthia has only 4 pennies. Each day she adds 6 pennies to her piggy bank. If she keeps using this rule, how many pennies will Cynthia have on the fifth day?

Key: “On day one… has 4 pennies” → that’s her amount *on* day 1.
Then “each day she adds 6” — so on day 1, does she add? The phrase “each day” usually includes day 1 onward.

But in everyday language, if you say “On Monday I had $4. Each day I add $6”, you’d add on Monday too — so end of Monday = $10.

However, multiple standardized tests treat the initial value as day 1 *before* any operation, and “on the nth day” means after n−1 additions.

Let’s test with small n:
- If asked: “How many on day 1?” → should be 4 (given).
So day 1 = 4
Then day 2 = 4 + 6 = 10
Day 3 = 16
Day 4 = 22
Day 5 = 28

Yes! Because:
- Day 1: 4
- Add 6 → now it’s day 2
So after 4 additions, it’s day 5.

Number of additions by day n = n − 1.

So day 5: 4 + 6 × (5 − 1) = 4 + 24 = 28

✔ That matches option C.

So correct answer is: C) 28

I earlier misselected D — sorry. Final answer is C.

Final Answer:
C) 28