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.
Advertisements
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
Asha got 86.875% marks in the annual examination. If she got 695 marks, find the total number of marks of the examination.
In an objective type paper of 150 questions; John got 80% correct answers and Mohan got 64% correct answers.
(i) How many correct answers did each get?
(ii) What percent is Mohan’s correct answers to John’s correct answers?
The price of sugar is increased by 20%. By what percent must the consumption of sugar be decreased so that the expenditure on sugar may remain the same?
Find the value of 10% of Rs. 400.40
Find the value of `12 1/2 %` of 80 kg
Find the value of `33 1/3 %` of 27 m
A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?
Weight of Nikhil increased from 60 kg to 66 kg. Then, the increase in weight is ______ %.
What is 15% of 20?
In a debate competition, the judges decide that 20 per cent of the total marks would be given for accent and presentation. 60 per cent of the rest are reserved for the subject matter and the rest are for rebuttal. If this means 8 marks for rebuttal, then find the total marks.
