Advertisements
Advertisements
प्रश्न
The population of a city decreased from 25,000 to 24,500. Find the percentage decrease.
उत्तर
The population of the city decreased from 25000 to 24500.
Total population decreased = 25000 - 24500
= 500
Percentage of population decrease = `"Total population decreased"/"Actual population before decrease"`
= `500/25000 xx 100`
= 2%
Therefore, the population of the city has decreased by 2%.
APPEARS IN
संबंधित प्रश्न
A man got a 10% increase in his salary. If his new salary is Rs 1,54,000, find his original salary.
On Sunday 845 people went to the Zoo. On Monday only 169 people went. What is the per cent decrease in the people visiting the zoo on Monday?
A school team won 6 games this year against 4 games won last year. What is the percent increase
The number of illiterate persons in a country decreased from 150 lakhs to 100 lakhs in 10 years. What is the percentage of decrease?
Kayal scored 225 marks out of 500 in revision test 1 and 265 out of 500 marks in revision test 2. Find the percentage of increase in her score
Four times a number is a ______ % increase in the number.
In 2007 – 08, the number of students appeared for Class X examination was 1,05,332 and in 2008 – 09, the number was 1,16,054. If 88,151 students pass the examination in 2007 – 08 and 103804 students in 2008 – 09. What is the increase or decrease in pass % in Class X result?
The food labels given below give information about 2 types of soup: cream of tomato and sweet corn. Use these labels to answer the given questions. (All the servings are based on a 2000 calorie diet.)
| Sweet Corn | Cream of Tomato | ||
| Nutrition Facts | Nutrition Facts | ||
| Serving Size 1 cup (240ml) | Serving Size 1 cup (240ml) | ||
| About 2 serving per Container | About 2 serving per Container | ||
| Amount Per Serving | Amount Per Serving | ||
| Calories 90 | Calories from Fat 9 | Calories 100 | Calories from Fat 20 |
| % Daily Value* | % Daily Value* | ||
| Total Fat 2g | 2% | Total Fat 2g | 3% |
| Saturated Fat-0g | 0% | Saturated Fat-1.5g | 6% |
| Cholesterol 0mg | 0% | Cholesterol 10mg | 3% |
| Sodium 540mg | 22% | Sodium 690mg | 29% |
| Total Carbohydrate 17g | 6% | Total Carbohydrate 17g | 6% |
| Dietary Fibre 3 gram | 14% | Dietary Fibre 4 gram | 18% |
| Sugar 5g | Sugar 11g | ||
| Protein 3g | Protein 2g | ||
| Vitamin A 30% | Vitamin C 10% | Vitamin A 20% | Vitamin C 20% |
| Calcium 2% | Iron 6% | Calcium 0% | Iron 8% |
| *Per cent Daily Values are based on a 2,000 calorie diet. |
*Per cent Daily Values are based on a 2,000 calorie diet. |
||
Find the increase per cent of sugar consumed if cream of tomato soup is chosen over sweet corn soup.
For an amount, explain why, a 20% increase followed by a 20% decrease is less than the original amount.
Sunscreens block harmful ultraviolet (UV) rays produced by the sun. Each sunscreen has a Sun Protection Factor (SPF) that tells you how many minutes you can stay in the sun before you receive one minute of burning UV rays. For example, if you apply sunscreen with SPF 15, you get 1 minute of UV rays for every 15 minutes you stay in the sun.
Suppose a sunscreen allows 25% of the sun’s UV rays.
- What fraction of UV rays does this sunscreen block? Give your answer in lowest terms.
- Use your answer from Part (a) to calculate this sunscreen’s SPF. Explain how you found your answer.
