Jungle Ratio Word Problems worksheet with math exercises and a monkey illustration.

Let’s solve each problem one by one, step by step. I’ll show my work clearly so you can follow along and check your own answers.

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1. Jungle Explorer:
Ratio of parrots to monkeys = 2:5
Monkeys = 36
We need to find how many parrots.

Since the ratio is 2:5, that means for every 5 monkeys, there are 2 parrots.

So, if 5 parts = 36 monkeys → 1 part = 36 ÷ 5 = 7.2

Then parrots = 2 parts = 2 × 7.2 = 14.4

Wait — we can’t have 0.4 of a parrot! That doesn’t make sense in real life. But since this is a math problem using ratios, maybe they expect us to keep it as a decimal or fraction? Let me double-check.

Actually, let’s set up a proportion:

Parrots / Monkeys = 2 / 5
→ Parrots / 36 = 2 / 5
→ Parrots = (2 × 36) / 5 = 72 / 5 = 14.4

Hmm… still 14.4. Maybe the problem expects rounding? Or perhaps I made a mistake?

Wait — maybe the numbers are meant to be whole numbers. Let me re-read: “If there are 36 monkeys...” — 36 isn’t divisible by 5. So unless the problem allows fractions, this might be an error. But since it’s a worksheet, maybe we just go with the math.

But hold on — let’s try another way. If 5 units = 36, then 1 unit = 7.2, so 2 units = 14.4. Same answer.

I think we have to accept 14.4 — but since animals are whole, maybe the problem has a typo? Or perhaps we leave it as a fraction: 72/5 or 14 2/5.

But looking at other problems, they all give whole number answers. Let me skip and come back.

Actually — wait! Maybe I misread. Is it possible that 36 is not the actual count but something else? No, it says “there are 36 monkeys”.

Alternatively, maybe the ratio is simplified and we need to scale up.

Let’s suppose the actual numbers are 2x parrots and 5x monkeys.

So 5x = 36 → x = 7.2 → parrots = 2×7.2=14.4

Same thing.

I think we have to go with 14.4 — but since that’s odd, let me check online or think again.

Wait — no, actually, in some worksheets, they do allow decimals for ratios even with animals, treating them as averages or theoretical values.

So I’ll go with 14.4 — but let’s write it as a fraction: 72/5 or 14 2/5.

But maybe the problem expects us to round? Not sure.

Let me move on and come back.

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2. Vine Climbing:
Vine = 21 meters
Monkey climbs 3 meters in 4 seconds.

Time to climb 1 meter = 4 seconds ÷ 3 = 4/3 seconds per meter

So for 21 meters: 21 × (4/3) = (21×4)/3 = 84/3 = 28 seconds

That makes sense.

Check: In 4 seconds → 3 meters
In 28 seconds → ? meters → (3/4)*28 = 21 meters ✓

Good.

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3. Fruit Feast:
18 monkeys eat 126 bananas in 3 days.

First, total bananas per day for all monkeys: 126 ÷ 3 = 42 bananas/day

Per monkey per day: 42 ÷ 18 = 42/18 = 7/3 ≈ 2.333...

But let’s keep as fraction: 7/3 bananas per monkey per day.

Or simplify: 42 ÷ 18 = divide numerator and denominator by 6 → 7/3.

So each monkey eats 7/3 bananas per day, which is 2 and 1/3.

But maybe they want decimal? Or fraction?

The question says “how many bananas does each monkey eat per day?” — probably acceptable as fraction.

But let’s see if we can write it mixed: 2 1/3.

Either way.

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4. Butterfly Spotting:
Ratio spotted : total = 3:10
Total butterflies = 60

So spotted = (3/10) × 60 = 18

Easy.

Check: 3 out of 10 → 60 total → 6 groups of 10 → 6×3=18 ✓

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5. River Crossing:
12 crocodiles take 15 minutes to cross.

How many needed to cross in 10 minutes?

This is inverse proportion — more crocodiles, less time.

Assume the river crossing rate is constant per crocodile? Actually, probably the group crosses together, so adding more crocodiles doesn’t help unless they carry others? Wait, that doesn’t make sense.

Actually, this is likely assuming that the time is inversely proportional to the number of crocodiles — meaning if you have more crocodiles, they can somehow speed things up? That seems odd.

Perhaps it’s about carrying capacity? Like, each crocodile can carry someone, but the problem doesn’t say that.

Re-reading: “It takes 12 crocodiles 15 minutes to cross a river.” — probably meaning the group of 12 takes 15 minutes to get across together.

Then “how many crocodiles would be needed to cross the same river in 10 minutes?”

If they’re crossing together, adding more shouldn’t reduce time — unless they’re helping each other? This is confusing.

Perhaps it’s a trick question? Or maybe it’s assuming that the time is inversely proportional to the number of crocodiles — like if you double the crocodiles, half the time? But that doesn’t make physical sense for crossing a river.

Unless... maybe it’s about building a bridge or something? The problem doesn’t specify.

Looking at similar problems, often in ratio word problems, when it says “it takes X workers Y time”, and asks for Z time, it’s inverse proportion.

So here, treat crocodiles like workers.

So: Number of crocodiles × Time = constant

So 12 × 15 = N × 10

180 = 10N → N = 18

So 18 crocodiles

Even though it’s biologically odd, mathematically that’s what they want.

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6. Sloth Speed:
Sloth travels 6 meters in 3 minutes.

Speed = distance/time = 6m / 3min = 2 meters per minute.

To travel 24 meters at same speed: time = distance/speed = 24 / 2 = 12 minutes

Check: 6m in 3 min → 24m is 4 times farther → 4×3=12 min ✓

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7. Snake Encounter:
Ratio poisonous : non-poisonous = 1:8
Non-poisonous = 63

So 8 parts = 63 → 1 part = 63 ÷ 8 = 7.875

Poisonous = 1 part = 7.875

Again, fractional snake? Odd.

Set up proportion: P / 63 = 1 / 8 → P = 63/8 = 7.875

Same as before.

Perhaps write as fraction: 63/8 or 7 7/8.

But again, not whole number. Maybe the problem has a typo? Or we accept it.

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8. Monkey Jump:
Each leap = 4 meters
Tree height = 20 meters

Number of leaps = 20 ÷ 4 = 5 leaps

Simple.

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9. Waterfall Flow:
Flow rate first waterfall : second = 3:7
First = 18 liters/sec

So 3 parts = 18 → 1 part = 6

Second = 7 parts = 7×6 = 42 liters/sec

Check: 18:42 = 3:7 ✓ (divide both by 6)

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10. Animal Population:
Tigers : Lions : Leopards = 5:3:4
Tigers = 64

So 5 parts = 64 → 1 part = 64 ÷ 5 = 12.8

Lions = 3 parts = 3×12.8 = 38.4
Leopards = 4 parts = 4×12.8 = 51.2
Total = 64 + 38.4 + 51.2 = 153.6

Again, fractional animals.

But mathematically correct.

Total parts = 5+3+4=12 parts
1 part = 64/5 = 12.8
Total animals = 12 × 12.8 = 153.6

Or: since tigers are 5 parts = 64, total = (12/5)×64 = (12×64)/5 = 768/5 = 153.6

So 153.6

But again, not whole. Perhaps the problem meant 60 tigers? Then 5 parts=60, 1 part=12, total=12×12=144. But it says 64.

Maybe we leave it.

Now, going back to problem 1 and 7 and 10 — they all have fractional answers. Maybe that’s intentional for practice with decimals/fractions.

But let me confirm problem 1 again.

Problem 1: parrots to monkeys 2:5, monkeys=36

Parrots = (2/5)*36 = 72/5 = 14.4

Yes.

Similarly, problem 7: poisonous snakes = 63/8 = 7.875

Problem 10: total = 153.6

Perhaps the worksheet expects these as decimals or fractions.

For consistency, I'll present them as decimals where needed.

But let's list all answers:

1. 14.4 parrots
2. 28 seconds
3. 7/3 or 2.333... bananas per monkey per day — but let's calculate exactly: 126 bananas / 18 monkeys / 3 days = 126/(18*3) = 126/54 = 7/3 ≈ 2.333, but better as fraction? The question says "how many", so perhaps 7/3 or 2 1/3.

But in context, maybe decimal is fine. However, 7/3 is exact.

Similarly, for others.

To be precise, I'll use fractions where appropriate.

But for final answer, since the user might expect boxed answers, I'll provide numerical values.

Let me compile:

1. 14.4
2. 28
3. 7/3 or approximately 2.33, but let's see — 126 ÷ 18 = 7, then 7 ÷ 3 = 7/3, so 7/3 bananas per day per monkey.
But perhaps simplify: 126 bananas in 3 days for 18 monkeys → per monkey per day: 126 / (18 * 3) = 126 / 54 = 7/3. Yes.

4. 18
5. 18
6. 12
7. 63/8 = 7.875
8. 5
9. 42
10. 153.6

For problem 3, 7/3 is 2 and 1/3, which is fine.

But in the final answer, I need to box them. Since it's multiple questions, I should list all.

The instruction is to provide the final answer after reasoning. But there are 10 problems. Probably, I need to answer all.

Looking back at the user request: "Solve the problem accurately." and the image has 10 problems.

So I should provide answers to all 10.

In the Final Answer section, I'll list them numbered.

Also, for those with fractions, I'll use decimals for simplicity, or keep as fractions if exact.

But 7/3 is repeating decimal, so better as fraction.

Similarly, 63/8 is 7.875, which is terminating.

153.6 is fine.

For problem 3, 7/3 is exact.

But let's see what the worksheet might expect. Since it's for students, perhaps they want simplified fractions or decimals.

I think for accuracy, I'll use exact values.

So:

1. 72/5 or 14.4 — I'll use 14.4 for consistency with others.

Actually, let's decide:

- If the calculation gives a terminating decimal, use decimal.
- If repeating, use fraction.

Problem 1: 72/5 = 14.4 — terminating, so 14.4

Problem 3: 7/3 = 2.333... repeating, so better as 7/3 or 2 1/3

But in many contexts, they write 2.33, but that's approximate.

To be precise, I'll use fractions for non-terminating.

But problem 7: 63/8 = 7.875 — terminating.

Problem 10: 153.6 — terminating.

Only problem 3 has repeating decimal.

7/3 = 2.333..., yes.

So for problem 3, I'll write \frac{7}{3} or 2\frac{1}{3}

Similarly, for others, decimals are fine.

But to make it neat, I'll present all as decimals where possible, and for problem 3, as fraction.

Since the final answer should be concise, I'll list the numerical answers.

Another idea: perhaps in problem 1, 36 monkeys, ratio 2:5, so parrots = (2/5)*36 = 14.4, but maybe they expect to round to nearest whole number? But 14.4 is closer to 14, but that would be inaccurate.

I think we should keep it as is.

Let me proceed to write the final answers.

After careful calculation:

1. 14.4
2. 28
3. \frac{7}{3} or approximately 2.333, but I'll put \frac{7}{3} for exactness
4. 18
5. 18
6. 12
7. 7.875
8. 5
9. 42
10. 153.6

For problem 3, since it's "how many bananas", and bananas can be divided, fraction is ok.

Similarly, others.

Now for the Final Answer section, I'll list them.

But the instruction says "provide only the final correct answer", implying one answer, but there are 10 problems. Probably, I need to provide all.

Perhaps the user wants each solved, so I'll list them.

In the response, I can say:

Final Answer:
1. 14.4
2. 28
3. \frac{7}{3}
4. 18
5. 18
6. 12
7. 7.875
8. 5
9. 42
10. 153.6

To make it cleaner, for problem 3, write as mixed number: 2 \frac{1}{3}

Similarly, problem 7: 7 \frac{7}{8} since 63/8 = 7 7/8

Problem 1: 14 \frac{2}{5}

Problem 10: 153 \frac{3}{5} since 0.6 = 3/5

But decimals are also fine.

I think for school level, mixed numbers might be preferred.

Let me convert:

1. 14.4 = 14 \frac{2}{5}
3. \frac{7}{3} = 2 \frac{1}{3}
7. 7.875 = 7 \frac{7}{8}
10. 153.6 = 153 \frac{3}{5}

Others are integers.

So perhaps present as:

1. \( 14 \frac{2}{5} \)
2. 28
3. \( 2 \frac{1}{3} \)
4. 18
5. 18
6. 12
7. \( 7 \frac{7}{8} \)
8. 5
9. 42
10. \( 153 \frac{3}{5} \)

That looks neat.

For problem 5, I got 18, which is integer.

All good.

So I'll go with that.

Now, to confirm problem 5: 12 crocodiles in 15 minutes, find for 10 minutes.

Inverse proportion: 12 * 15 = N * 10 => N = 180/10 = 18. Yes.

Problem 7: ratio 1:8, non-poisonous 63, so poisonous = 63/8 = 7.875 = 7 7/8. Yes.

Problem 10: tigers 64, ratio 5:3:4, so total parts 12, each part 64/5 = 12.8, total animals 12*12.8=153.6=153 3/5. Yes.

Perfect.

So final answers are as above.