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The total production of 10 tea estates is 550 tonnes. By opening two new estates, the average increases by 3 tonnes. The average production of these two new tea estates (in tonnes )is ?
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Of the three numbers, the first is four times the second and three times the third, If the average of all the three numbers is 95, then the third number is ?
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The average number of printing errors per in a book of 512 pages is 4. If the total number of printing errors in the first 302 pages is 1208, the average number of printing errors per page in the remaining pages is ?
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The average weight of 35 students in a class is 35 kg. If the teacher is also included, the average weight increases to 36 kg . the weight of the teacher is ?
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The average age of 24 boys in a class is 16. If the teacher is included and one boy is excluded from the group, the average increases by one. The age of the teacher is ?
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