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Find: 25% of 10 Kg - Mathematics

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प्रश्न

Find: 25% of 10 kg

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उत्तर

\[25 \% \text{ of }10  kg = \frac{25}{100} \times 10 kg\]
\[ = \frac{25}{10}kg = \frac{5}{2}kg\]
\[ = 2 . 5 kg\]

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अध्याय 12: Percentage - Exercise 12.2 [पृष्ठ ९]

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आरडी शर्मा Mathematics [English] Class 8
अध्याय 12 Percentage
Exercise 12.2 | Q 1.3 | पृष्ठ ९

वीडियो ट्यूटोरियलVIEW ALL [1]

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A metal bar weighs 8.5 kg. 85% of the bar is silver. How many kilograms of silver are in the bar?


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.

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  1. Calculate your ideal weight as per your height from the table given at the end of this question.
  2. An active child should eat around 55.11 calories for each kilogram desired weight.
  3. 55 per cent of calories should come from carbohydrates. There are 4 calories in each gram of carbohydrates.
  4. 15 per cent of your calories should come from proteins. There are 4 calories in each gram of proteins.
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Following is an example to design your own healthy diet.

Example

  1. Ideal weight = 40 kg.
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  4. Calories that should come from proteins = 2204.4 × 0.15 = 330.66 calories.
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Answer the Given Questions

  1. Your ideal desired weight is ______ kg.
  2. The quantity of calories you need to eat is ______.
  3. The quantity of protein needed is ______ g.
  4. The quantity of fat required is ______ g.
  5. The quantity of carbohydrates required is ______ g.
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Feet cm Kilograms Feet cm Kilograms
5’ 152 48 4’7” 140 34
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5’3” 160 56 4’1” 147 41
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5’10” 178 75 5’5” 165 57
5’11” 180 78 5’6” 168 59
6’ 183 81 5’7” 170 61
6’1” 185 84 5’8” 173 64
6’2” 188 86 5’9” 175 66
6’3” 191 89 5’10” 178 68
6’4” 193 92 5’11” 180 70

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