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Find the average of first 10 multiples of 7

  • 35.5
  • 37.5
  • 38.5
  • 40.5
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1. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is

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2. A library has an average of 510 visitors on Sundays and 240 on other day. The average number of visitors in a month of 30 days starting with sunday is

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3. 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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4. 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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5. Average of 10 matches is 32, How many runs one should should score to increase his average by 4 runs.

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  • 78
  • 80
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