हिंदी
सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Find the Value of 1% of Rs. 500

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प्रश्न

Find the value of 1% of Rs. 500

योग
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उत्तर

1% of Rs. 500

Rs. `500 xx 1/100` = Rs. 5

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अध्याय 9: Percent and Percentage - Exercise 8 (A)

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आर.के. बंसल Concise Mathematics [English] Class 7 ICSE
अध्याय 9 Percent and Percentage
Exercise 8 (A) | Q 4.3

संबंधित प्रश्न

Write the following as percent:
0.005


Rohit deposits 12% of his income in a bank. He deposited Rs 1440 in the bank during 1997. What was his total income for the year 1997?


The cost of an article is first decreased by 25% and then further decreased by 40%. Find the percentage change in the cost of the article.


A number is increased by 10% and the resulting number is again increased by 20%. What is the overall percentage increase in the number?


Find the value of `5/8 %` of Rs. 600.


Express the following natural number as a percent:

2


A class contains 25 children, of which 6 are girls. What percentage of the class are the boys?


The population of a small locality was 4000 in 1979 and 4500 in 1981, By what percent had the population increase?


Find the resulting quantity when 25 km is increased by 5%.


When you design your healthy diet, you want to make sure that you meet the dietary requirements to help you grow into a healthy adult. As you plan your menu, follow the following guidelines

  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.
  5. 30 per cent of your calories may come from fats. There are 9 calories in each gram of fat.

Following is an example to design your own healthy diet.

Example

  1. Ideal weight = 40 kg.
  2. The number of calories needed = 40 × 55.11 = 2204.4
  3. Calories that should come from carbohydrates = 2204.4 × 0.55 = 1212.42 calories.
    Therefore, required quantity of carbohydrates = `1212.42/4` = 303.105 g = 300 g. (approx)
  4. Calories that should come from proteins = 2204.4 × 0.15 = 330.66 calories.
    Therefore, required quantity of protein = `330.66/4` g = 82.66 g.
  5. Calories that may come from fat = 2204.4 × 0.3 = 661.3 calories.
    Therefore, required quantity of fat = `661.3/9` g = 73.47 g.

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.
Ideal Height and Weight Proportion
Men Women
Height Weight Height Weight
Feet cm Kilograms Feet cm Kilograms
5’ 152 48 4’7” 140 34
5’1” 155 51 4’8” 142 36
5’2” 157 54 4’9” 145 39
5’3” 160 56 4’1” 147 41
5’4” 163 59 4’11” 150 43
5’5” 165 62 5’ 152 45
5’6” 168 65 5’1” 155 48
5’7” 170 67 5’2” 157 50
5’8” 173 70 5’3” 160 52
5’9” 175 73 5’4” 163 55
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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