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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 6

Express the Following Natural Number as a Percent: 19.5 - Mathematics

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प्रश्न

Express the following natural number as a percent:

19.5

योग
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उत्तर

`19.5=19.5/10xx100%=1950%`

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 16: Percent (Percentage) - Exercise 16 (A)

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सेलिना Mathematics [English] Class 6
अध्याय 16 Percent (Percentage)
Exercise 16 (A) | Q 6.3

संबंधित प्रश्न

The value of a machine depreciates every year by 5%. If the present value of the machine be Rs 100000, what will be its value after 2 years?


In a combined test in English and Physics; 36% candidates failed in English; 28% failed in Physics and 12% in both; find:
the total number of candidates appeared, if 208 candidates have failed.


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


If a man spends 70% of his income, what percent does he save?


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


If a car is sold for ₹ 2,00,000 from its original price of ₹ 3,00,000, then find the percentage of decrease in the value of the car


P’s income is 25% more than that of Q. By what percentage is Q’s income less than P’s?


A picture of chess board is given. Find the percentage of the white coloured squares


Find the value of x if 45% of marks x is 405.


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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