What is 18% of 500? 18% of 500 represent 18 parts out of hundred, so 18% of 500 represents 18 parts for each hundred which is 18 + 18 + 18 + 18 + 18 = 90. Thus, 18% of 500 = 90

So, 18% of 500 = \(\frac{18}{100}\) × 500 = 18 × 5 = 90

To find the percent of a given number let us consider some of the following examples.

**1.** Find 50% of 75.**Solution:**

50% of 75

= 50 × 1/100 × 75

= 50/100 × 75

= (50 × 75)/100

= 3750/100

= 3750/100 ÷ 50/50

[Divide the numerator and denominator by 50]

= 75/2

= 37 ½**Answer: 37 ½**

**2.** What is 15% of 200?

**Solution:**

15% of 200

= \(\frac{15}{100}\) × 200

= 15 × 2

= 30

**3.** Find 12% of 250.**Solution:**

12% of 250

= 12 × 1/100 × 250

= 12/100 × 250

= (12 × 250)/100

= 3000/100

= 3000/100 ÷ 100/100

[Divide the numerator and denominator by 100]

= 30**Answer: 30****4.** Find 30% of 86.**Solution:**

30% of 86

= 30 × 1/100 × 86

= 30/100 × 86

= (30 × 86)/100

= 2580/100

= 2580/100 ÷ 20/20

[Divide the numerator and denominator by 20]

= 129/5

= 25 4/5**Answer: 25 4/5**

**5.** Find 15% of 60.**Solution:**

15% of 60

= 15 × 1/100 × 60

= 15/100 × 60

= (15 × 60)/100

= 900/100

= 900/100 ÷ 100/100

[Divide the numerator and denominator by 100]

= 9**Answer: 9****6.** Find 21% of 200.**Solution:**

21% of 200

= 21 × 1/100 × 200

= 21/100 × 200

= (21 × 200)/100

= 4200/100

= 4200/100 ÷ 100/100

[Divide the numerator and denominator by 100]

= 42**Answer: 42**

**7.** What is 25% of 40?

**Solution:**

25% of 40

= \(\frac{25}{100}\) × 40

= \(\frac{100}{10}\)

= 10

**8.** Find 10% of 500.**Solution:**

10% of 500

= 10 × 1/100 × 500

= 10/100 × 500

= (10 × 500)/100

= 5000/100

= 5000/100 ÷ 100/100

[Divide the numerator and denominator by 100]

= 50**Answer: 50****9.** Find 6% of 1000.**Solution:**

6% of 1000

= 6 × 1/100 × 1000

= 6/100 × 1000

= (6 × 1000)/100

= 6000/100

= 6000/100 ÷ 100/100

[Divide the numerator and denominator by 100]

= 60**Answer: 60****10.** Find 80% of 120.**Solution:**

80% of 120

= 80 × 1/100 × 120

= 80/100 × 120

= (80 × 120)/100

= 9600/100

= 9600/100 ÷ 100/100

[Divide the numerator and denominator by 100]

= 96**Answer: 96****11.** What is 20% of 1500?**Solution:**

20% of 1500

= 20 × 1/100 × 1500

= 20/100 × 1500

= (20 × 1500)/100

= 30000/100

= 30000/100 ÷ 100/100

[Divide the numerator and denominator by 100]

= 300**Answer: 300****12.** What is 25% of 140?**Solution:**

25% of 140

= 25 × 1/100 × 140

= 25/100 × 140

= (25 × 140)/100

= 3500/100

= 3500/100 ÷ 100/100

[Divide the numerator and denominator by 100]

= 35**Answer: 35****13. **What is 24% of 230?**Solution:**

24% of 230

= 24 × 1/100 × 230

= 24/100 × 230

= (24 × 230)/100

= 5520/100

= 5520/100 ÷ 20/20

[Divide the numerator and denominator by 20]

= 276/5

= 55 1/5

**Answer: 55 1/5**

**14.** What is 14% of 56?

**Solution:**

14% of 56

= 14 × 1/100 × 56

= 14/100 × 56

= (14 × 56)/100

= 784/100

= 784/100 ÷ 4/4

[Divide the numerator and denominator by 4]

= 196/25

= 7 21/25

**Answer: 721/25**

**15.** What is 25% of 1 kg in grams?

**Solution:**

1 kg = 1000 g

25% of 1000 g

= \(\frac{25}{100}\) × 1000

= 250 g

Questions and Answers on Decimal into Percentage:

**I. Find the value of the following:**

(i) 30% of 100

(ii) 82% of 346

(iii) 20% of 50

(iv) 58% of 280

(v) 80% of 400

(vi) 12\(\frac{1}{2}\) of 900

**Answers:**

(i) 30

(ii) 283.72

(iii) 10

(iv) 162.4

(v) 320

**
**

(vi) 112.5

**II. How much percent is each of the following?**

(i) 5 of 50

(ii) 75 of 100

(iii) 20 of 400

(iv) 40 of 120

**Answers:**

(i) 10%

(ii) 75%

(iii) 5%

(iv) 33.33%

**To Convert a Percentage into a Fraction**

**To Convert a Fraction into a Percentage**

**To find the percent of a given number**

**To find what Per cent is one Number of another Number**

**To Calculate a Number when its Percentage is Known**

**5th Grade Numbers Page ** **5th Grade Math Problems ** **From To find the percent of a given number to HOME PAGE**

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