Question
Express the following as percentages: (1) 25 of 50 . (2) 36 of 20 (4) 72 of 120 . (5) 100 of 300 (7) R120 of R90* (8) 55 kg of 88 kg (10) 5 g of 2 kg (11) 240 m of 3 km
Ask by Barnett Young. in South Africa
Feb 03,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
Here are the percentages:
1. 50%
2. 180%
4. 60%
5. 33.33%
7. 133.33%
8. 62.5%
10. 0.25%
11. 8%
Solution
Sure, here are the given ratios expressed as percentages:
1. **25 of 50**
\[
\frac{25}{50} \times 100 = 50\%
\]
2. **36 of 20**
\[
\frac{36}{20} \times 100 = 180\%
\]
4. **72 of 120**
\[
\frac{72}{120} \times 100 = 60\%
\]
5. **100 of 300**
\[
\frac{100}{300} \times 100 = 33.\overline{3}\% \ (\text{or } 33.33\%)
\]
7. **R120 of R90**
\[
\frac{120}{90} \times 100 = 133.\overline{3}\% \ (\text{or } 133.33\%)
\]
8. **55 kg of 88 kg**
\[
\frac{55}{88} \times 100 = 62.5\%
\]
10. **5 g of 2 kg**
First, convert kilograms to grams to have consistent units:
\[
2 \text{ kg} = 2000 \text{ g}
\]
Then calculate the percentage:
\[
\frac{5}{2000} \times 100 = 0.25\%
\]
11. **240 m of 3 km**
First, convert kilometers to meters to have consistent units:
\[
3 \text{ km} = 3000 \text{ m}
\]
Then calculate the percentage:
\[
\frac{240}{3000} \times 100 = 8\%
\]
---
**Summary of Percentages:**
1. 50%
2. 180%
4. 60%
5. 33.33%
7. 133.33%
8. 62.5%
10. 0.25%
11. 8%
Reviewed and approved by the UpStudy tutoring team
Like
error msg
Explain 
Simplify this solution Bonus Knowledge
(1) To express 25 of 50 as a percentage, you divide 25 by 50, then multiply by 100. So, (25/50) × 100 = 50%. (2) Similarly, for 36 of 20, divide 36 by 20 and multiply by 100. This gives you (36/20) × 100 = 180%. (4) For 72 of 120, it's (72/120) × 100 = 60%. (5) For 100 of 300, it’s (100/300) × 100 = 33.33%. (7) To find R120 of R90, do (120/90) × 100 = 133.33%. (8) For 55 kg of 88 kg, calculate (55/88) × 100 = 62.5%. (10) For 5 g of 2 kg, convert 2 kg to grams (2000 g) and then calculate (5/2000) × 100 = 0.25%. (11) Lastly, for 240 m of 3 km (3000 m), it's (240/3000) × 100 = 8%.
