Advertisements
Advertisements
प्रश्न
70% of our body weight is made up of water. Find the weight of water in the body of a person whose body weight is 56 kg.
Advertisements
उत्तर
Water in the human body = 70%
Weight of a man = 56 kg
Quantity of water in him = 70% of 56
= `70/100xx56`
= 39.2 kg
APPEARS IN
संबंधित प्रश्न
Write the following as percent:
13 : 75
A garden has 2000 trees. 12% of these are mango trees, 18% lemon and the rest are orange trees. Find the number of orange trees.
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?
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.
Express as a percent:
0.15
Express the following natural number as a percent:
5.37
Find the resulting quantity when 25 km is increased by 5%.
Air is an important inexhaustible natural resource. It is essential for the survival of human beings, microbes, plants, and animals. The following table shows the percentage of various gases in the air.
| Contents of air | Percentage (by volume) |
| Nitrogen | 78 |
| Oxygen | 21 |
| Other (carbon dioxide, inert gases, water vapours, etc.) | 1 |
If a certain quantity (by volume) of air contains 4,200 litres of oxygen, find the total quantity of air taken and the amount of nitrogen in it.
15% of 25% of 10000 = ___________
Below is the Report Card of Vidit Atrey. Vidit’s teacher left the last column blank. Vidit is not able to make out, in which subject he performed better and in which he needs improvement. Complete the table to help Vidit know his comparative performance.
| Assessment Report for 2009-2010 | |||||
| Class : 9B | Name : Vidit Atrey | Date : 31 March 2010 | |||
| Subject | Internal assessment |
Examination | Total | Final% | |
| 1. | English Literature | 20/25 | 82/100 | 102/125 | |
| 2. | English Language | 22/25 | 91/100 | 113/125 | |
| 3. | Hindi Literature | 18/25 | 67/75 | 85/100 | |
| 4. | Hindi Language | 16/25 | 68/75 | 84/100 | |
| 5. | Mathematics | 42/50 | 88/100 | 130/150 | |
| 6. | Sanskrit | 14/20 | 75/100 | 99/120 | |
| 7. | Physics | 45/50 | 90/100 | 135/150 | |
| 8. | Chemistry | 41/50 | 82/100 | 123/150 | |
| 9. | Biology | 43/50 | 87/100 | 130/150 | |
| 10. | History and Civics | 19/25 | 68/75 | 87/100 | |
| 11. | Geography | 17/20 | 71.5/80 | 88.5/100 | |
