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Average age of boys in a class is 16 years and average age of girls is 15 years, what is the average age of all

  • 15.5
  • 15
  • 16
  • Cant be computed
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1. Average of five numbers is 27. If one number is excluded the average becomes 25. The excluded number is

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2. The average age of the mother and her six children is 12 years which is reduced by 5 years if the age of the mother is excluded. How old is the mother

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3. The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is

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4. Find the average of first 10 multiples of 7

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5. Average of first five multiples of 3 is

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