Page from a math test focusing on number sense and numeration, featuring multiple-choice questions on percentages, money calculations, time, and arrangement of dancers.

Let’s solve each problem one by one, step by step.

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Problem 13: Which number is equivalent to 40%?

We know that “percent” means “per hundred”. So:

> 40% = 40 out of 100 = 40/100

Simplify 40/100 → divide numerator and denominator by 20 → 4/10

Also, 40% as a decimal is 0.40 (not 0.04 — that’s 4%).

Check the options:

- 4.0 → too big
- 1/4 → that’s 25%
- 4/10 → yes! That’s 40%
- 0.04 → that’s 4%

✔ Correct answer: 4/10

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Problem 14: Farmer sold 93 lambs. 41 at $280 each, rest at $225 each. Total money?

First, find how many were sold at $225:

> 93 total - 41 = 52 lambs at $225 each

Now calculate:

Part 1: 41 × $280
→ 40 × 280 = 11,200
→ 1 × 280 = 280
→ Total = 11,200 + 280 = $11,480

Part 2: 52 × $225
Break it down:
50 × 225 = 11,250
2 × 225 = 450
Total = 11,250 + 450 = $11,700

Add both parts:
$11,480 + $11,700 = $23,180

✔ Correct answer: $23,180

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Problem 15: Zafar walks 1 km in 18 minutes. How long for 10 km?

If 1 km takes 18 minutes, then 10 km takes:

> 10 × 18 = 180 minutes

Convert minutes to hours:
180 ÷ 60 = 3 hours

✔ Correct answer: 3 hours

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Problem 16: Arrange 96 dancers in rows with equal number per row. Which option works?

We need to check which multiplication gives exactly 96.

Option 1: 7 rows of 11 → 7 × 11 = 77 ✘
Option 2: 12 rows of 14 → 12 × 14 = 168 ✘
Option 3: 8 rows of 9 → 8 × 9 = 72 ✘
Option 4: 8 rows of 12 → 8 × 12 = 96 ✔

✔ Correct answer: 8 rows of 12

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Final Answer:
13. 4/10
14. $23,180
15. 3 hours
16. 8 rows of 12