Question
The PH of an aqueous solution of a salt is 4.5. Which of
the following about this salt is true?Solution
The correct answer is B
In an exam of 100 marks, the average marks of a class of 38 students are 72. If the top 3 scorers of the class leave, the average score falls “dow...
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Average weight of 5 students in a class increases by 4 kg when weight of teacher is also included. If sum of average weight of 5 students and weight of ...
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A writer wrote a certain number of pages daily for the first 20 days. In the next 10 days, he wrote at an average of 54 pages per day. This increased hi...
The average run rate of a cricket team during the first 20 over’s is 4.5. What should be the asking rate per over for the next 30 over’s. if it has...
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