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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.
Sum of the present ages of Gaurav and Shubham is 100. Age of Gaurav four years ago was twice the age of Shubham six years ago. Find the square root of a...
Four years ago, the ages of A and B were in the ratio of 6:7. Twelve years from now, their ages will be in the ratio of 10:11. Calculate the average of ...
The total age of A, B and C six years hence will be 89 years. Find the age of C five years hence, if the present age of A and B is 33 years and 24 years...
The ages of B and C are in the ratio 2:3, and the product of the ages of A and B is 768 years, with A's current age being x years. If the ratio of the a...
7 years ago, the ratio of the ages of A and B was 1:2 and after 7 years it will become 3:5. Find their present ages.
The ratio of difference between the present age of A and B to the present age of B and C is 6:1. 6 years hence, the ratio between the age of A and C is ...
Rohan's present age is 3/7 times the age of his mother. After five years, he will be one- half of the age of his mother. How old is his mother at pres...
Eight years ago, the ratio of the ages of Chahal and Rayudu was 5:7. In 16 years, the ratio of their ages will be 11:13. Calculate the average of their...
The heights (in cm) of 9 basketball players in a tournament are as follows: 178, 182, 175, 180, 184, 179, 177, 181, 183
Find the median height of...
The present average age of ‘X’ and ‘Y’ is 16 years, present average age of ‘X’ and ‘Z’ is 56 years and present average age of ‘Y’ an...
