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Explanation:
Let’s solve each question one by one, carefully.

1. Any bought a pencil for Rs 20 and an eraser for Rs 5. He spent Rs ______ altogether.
→ Add the two amounts: 20 + 5 = 25
So, he spent Rs 25.

2. Any bought 2 erasers for Rs 10. If she bought 1 eraser, she would spend Rs ______.
→ 2 erasers cost Rs 10, so 1 eraser costs: 10 ÷ 2 = 5
So, she would spend Rs 5.

3. The cost of 1 pencil is Rs 20. For Rs 60, Any can buy ______ pencils.
→ Each pencil = Rs 20. How many pencils in Rs 60?
→ 60 ÷ 20 = 3
So, she can buy 3 pencils.

4. Ted had Rs 40. He spent Rs 100 on 2 pencils. He has Rs ______ left.
→ Wait! This seems impossible at first — he only had Rs 40 but spent Rs 100?
But let’s read carefully: “He spent Rs 100 on a [image of 2 pencils]”. That means the 2 pencils together cost Rs 100.
However, he *had* only Rs 40. So if he spent Rs 100, he must have gone into debt — but in basic school math like this, usually we assume the numbers make sense. Let’s double-check:
Maybe it's a trick? Or maybe we misread.
Actually, look again: “Ted had Rs 40. He spent Rs 100 on a [2 pencils]”. That implies he spent more than he had — but the question asks “He has Rs ______ left.” In real life, that would be negative, but for grade-school level, this is likely a mistake — unless… wait! Perhaps the Rs 100 is the *total value* of what he bought, and he used other money? But the problem says “Ted had Rs 40” — no mention of more money.
Let’s reconsider: Could it be that the image shows *two pencils*, and earlier we learned 1 pencil = Rs 20, so 2 pencils = Rs 40? Then why does it say “Rs 100”? Hmm.
But the text explicitly says: “He spent Rs 100 on a [2 pencils]”. So we must go by what’s written — even if unrealistic.
Money left = money he had − money he spent = 40 − 100 = −60.
However, in most elementary worksheets, negative money isn’t expected. Let’s check if there’s another interpretation.
Wait — maybe “Rs 100” is a typo, but we must answer based on given info. Since this is a practice worksheet for young students, and all other problems use simple positive arithmetic, perhaps it’s intentional to test understanding: if you don’t have enough, you can’t spend more — but the question still asks for “left”, so mathematically: 40 − 100 = −60.
Yet, looking at the pattern of other questions, they are all straightforward addition/subtraction with positive results. Let me re-express:
Alternative idea: Maybe “He spent Rs 100 on a [2 pencils]” means the *price per pencil* is Rs 100? No — it says “on a” and then shows two pencils, so total Rs 100 for two.
Given this is likely for early grades, and no negatives are used elsewhere, I suspect the intended numbers are: Ted had Rs 100, spent Rs 40? But the text says opposite.
Let’s hold and check the last question — maybe it clarifies pricing.

5. A eraser costs Rs 5. Any bought 3 erasers. He paid Rs ______.
→ 3 × 5 = 15
So, he paid Rs 15.

Now go back to question 4. Let’s verify consistency:
- From Q1: 1 pencil = Rs 20
- So 2 pencils = 2 × 20 = Rs 40
But Q4 says he spent Rs 100 on 2 pencils — contradiction.
Unless… the Rs 100 is a red herring? No — we must trust the text as given in the problem.

Wait! Re-read Q4:
“Ted had Rs 40. He spent Rs 100 on a [2 pencils]. He has Rs ______ left.”
This is likely an error in the worksheet — but since we’re to solve as given, the math is:
40 − 100 = −60.
However, in Indian primary curriculum (where Rs is used), they rarely introduce negative numbers at this stage. So perhaps it’s a trick to realize he *cannot* do that — but the blank expects a number.

Let me check all other answers are positive integers. Maybe I misread the amount Ted had? It says “Rs 40”. Spent “Rs 100”. That’s clearly a deficit.

But here’s a possibility: The “Rs 100” is the *cost of something else*, and the 2 pencils are just shown as illustration — but the sentence says “He spent Rs 100 on a [2 pencils]”, so it’s linked.

Given this is a practice sheet for young kids, and all other problems are simple, I think the intended number for Q4 is:
Ted had Rs 100, spent Rs 40 → left with Rs 60.
But the text says opposite.

Alternatively, maybe “Rs 100” is a mistake and should be “Rs 40”. Then: 40 − 40 = 0. That makes sense.

But as an AI, I must answer based on what’s written — not assume corrections.

Let me search for internal consistency:
In Q3: 1 pencil = Rs 20 → 3 pencils = Rs 60 ✔
In Q1: 1 pencil Rs 20 + 1 eraser Rs 5 = 25 ✔
In Q2: 2 erasers Rs 10 → 1 eraser Rs 5 ✔
In Q5: 3 erasers × Rs 5 = Rs 15 ✔

So pricing is consistent: pencil = 20, eraser = 5.

Then 2 pencils = 40, not 100. So Q4 saying “spent Rs 100 on 2 pencils” contradicts earlier data.

This suggests a typo in the worksheet. In such cases, for educational integrity, we go with the *consistent* pricing: 2 pencils = Rs 40. So if Ted had Rs 40 and spent Rs 40, he has Rs 0 left.

That is the only logically consistent answer for a grade-school worksheet.

Therefore:
He had Rs 40, spent Rs 40 (for 2 pencils, since 2 × 20 = 40), so left with 0.

I’ll go with 0, assuming “Rs 100” is a typo and should be “Rs 40” — because otherwise the problem is inconsistent and inappropriate for the level.

Final verification:
- Q1: 20 + 5 = 25 ✔
- Q2: 10 ÷ 2 = 5 ✔
- Q3: 60 ÷ 20 = 3 ✔
- Q4: 40 − 40 = 0 ✔ (using consistent price)
- Q5: 3 × 5 = 15 ✔

Yes, that fits.

Final Answer:
25
5
3
0
15