Advertisements
Advertisements
Question
There are 500 students in a rural school. If 370 of them can swim, what percentage of them can swim and what percentage cannot?
Advertisements
Solution
Total number of students = 500
Number of students who can swim = 370
Percentage of students who can swim = `370/500 xx 100%` = 74%
Number of students who cannot swim = 500 – 370 = 130
Percentage of students who cannot swim = `130/500 xx 100%` = 26%
i.e. 74% can swim and 26% cannot swim
APPEARS IN
RELATED QUESTIONS
Write the following as percent:
15 : 16
Find: 135% of 80 cm
A certain school has 300 students, 142 of whom are boys. It has 30 teachers, 12 of whom are men. What percent of the total number of students and teachers in the school is female?
In an election between two candidates, one candidate secured 47% of votes polled and lost the election by 12,366 votes. Find the total votes and die votes secured by the winning candidate.
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 `12 1/2 %` of 80 kg
Find the resulting quantity when ₹ 400 is decreased by 8%.
Find the percentage change from the first quantity to the second:
50 cm, 45 cm
A student gets 31% marks in an examination but fails by 12 marks. If the pass percentage is 35%, find the maximum marks of the examination.
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
- Calculate your ideal weight as per your height from the table given at the end of this question.
- An active child should eat around 55.11 calories for each kilogram desired weight.
- 55 per cent of calories should come from carbohydrates. There are 4 calories in each gram of carbohydrates.
- 15 per cent of your calories should come from proteins. There are 4 calories in each gram of proteins.
- 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
- Ideal weight = 40 kg.
- The number of calories needed = 40 × 55.11 = 2204.4
- 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) - 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. - 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
- Your ideal desired weight is ______ kg.
- The quantity of calories you need to eat is ______.
- The quantity of protein needed is ______ g.
- The quantity of fat required is ______ g.
- 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 |
