 # Aptitude - Aptitude-Average And Interests

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The average age of a family of 5 members is 20 years. If the age of the youngest member be 10 years then what was the average age of the family at the time of the birth of the youngest member?

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The average of 5 quantities is 10 and the average of 3 of them is 9. What is the average of the remaining 2?

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• b
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• d

The average weight of a class of 24 students is 36 years. When the weight of the teacher is also included, the average weight increases by 1kg. What is the weight of the teacher?

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What is the average for all the three classes?

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• d

When a student weighing 45 kgs left a class, the average weight of the remaining 59 students increased by 200g. What is the average weight of the remaining 59 students?

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• d