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TDS stands for Total Dissolved Solids, which refers to any minerals, salts, metals, cations, or anions dissolved in water. This measure is a key indicator of water quality and its suitability for various uses.
The average weight of 20 students is 27 kg. If two students weighing 19 kg and 47 kg are replaced by a teacher weighing 77 kg, what is the new average w...
The average number of books sold by Viren in first 5 months is 3800 and in first 6 months is 4600. If the number of books sold by him in 7th ...
Out of 4 numbers, the average of first 3 is 19 and last 3 is 20. If the last number is 21. Find the first number?
In an examination, the average marks obtained by the students is 40. After correcting the quantitative mistakes, the average of 50 students is reduced t...
If average of first 12 numbers is (n – 23) and the sum of remaining number is 925. Find the value of ‘n’, if the average of 22 numbers is ‘n’....
The average weight of a group of five persons, A, B, C, D, and E is 70 kg. If another person K joins the group then the average weight of the group is d...
The average score of a group of 12 students in a math exam is 75. If the highest score, which is 95, is removed from the average, what will be the new a...
There are 40 elements in a data set and their average is 75. If every element is scaled by a factor of 12, compute the new average.
18 years ago the average age of a family of four members was 45 years. Two children were born in that span of 18 years. The present average age of the ...
The average score of a student increased by 5 marks when he scored 210 marks in his 60th test. Find the average score of the student after 60 tests.
