Question
How many oxygen atoms are present in a molecule of
Aluminum sulfate, Al₂(SO4₄)₃ ?Solution
Aluminum sulfate, Al₂(SO4₄)₃, contains three sulfate groups, each comprising four oxygen atoms, totaling twelve oxygen atoms. This compound is frequently used in water purification and paper manufacturing.
The sum of the original incomes of ‘M’ and ‘N’ is Rs. 77000. If the income of ‘M’ had been Rs. 11000 more, then it would have been 20% more ...
What will be the fraction of 20%
In an election, candidate 'A' secured 56% of the total votes cast, while candidate 'B' garnered 85% of the remaining votes. Among the votes received by ...
Out of his total income, Rohan spent 20% on groceries, 30% on school fees and 10% on rent. If he spent 30% of the remaining on entertainment and saved t...
If the length of a rectangle is increased by 60%, what would be the percentage decrease (correct to the nearest integer) in the width to maintain the sa...
Monthly savings of ‘A’ is Rs. 600 more than his monthly expenditure and his total monthly income is Rs. 5000. If his monthly income is increased by ...
A candidate who gets 22% marks fails by 10 marks but another candidate who gets 40% marks gets 14% more than the passing marks. Find the maximum marks.
- In a qualifying test, the passing marks are 60%. Marks obtained by ‘G’ are 5% less than passing marks, and ‘H’ scores 28% marks less than G. What p...
A gets 34% of the full marks in an exam and fails by 80 marks. B gets 36% of the full marks in the same exam and he also fails by 64 marks. What is the ...
A and B together have total of Rs.4000 out of which they donated 20% to the orphanage school. The remaining amount is to be then redistributed between t...
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