Advertisements
Advertisements
प्रश्न
Approximately 97.3% of the water on the earth is not fit for drinking. Find:
(i) the percentage of water on the earth that is fit for drinking.
(ii) The total volume of water available in certain parts of the earth where there are 21,600 m3 of drinking water.
उत्तर
Approximately water on earth which is not fit for drinking = 97.3%
(i) Water fit for drinking = 100 – 97.3 = 2.7%
(ii) At a certain place, the water which is fit for drinking = 21600 m3
The volume of the total water on that place
= `21600xx100/2.7"m"^3`
= `(21600xx100xx10)/27`
= 800 × 1000
= 8,00,000 m3
APPEARS IN
संबंधित प्रश्न
Write the following as percent:
3 : 25
Write the following as percent:
0.18
Find the percentage change, when a number is changed from :
100 to 80
An auctioneer charges 8% for selling a house. If a house is sold for Rs.2, 30, 500; find the charges of the auctioneer.
A bag contains 8 red balls, 11 blue balls and 6 green balls. Find the percentage of blue balls in the bag.
Express:
80 paise as a percent of Rs 4.
Rohit’s age is 12 years and Geeta’s age is 15 years. Express Geeta’s age as a percent of Rohit’s age.
0.5252 is _______ %
The population of a village is 8000. Out of these, 80% are literate and of these literate people, 40% are women. Find the ratio the number of literate women to the total population?
Imagine that a 10 × 10 grid has value 300 and that this value is divided evenly among the small squares. In other words, each small square is worth 3. Use a new grid for each part of this problem, and label each grid “Value: 300.”
- Shade 25% of the grid. What is 25% of 300? Compare the two answers.
- What is the value of 25 squares?
- Shade 17% of the grid. What is 17% of 300? Compare the two answers
- What is the value of `1/10` of the grid?
- Express `1/6` as a percent.
