# Aptitude - Aptitude-Average And Interests

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The average weight of 29 students in a class is 48 kg. If the teacher is included, the average weight rises by 500g. Find weight of the teacher ?

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The average temperature on Tuesday, Wendnesday and Thursday was 37 deegre C. The average temperature on Wedensday, Thursday and friday was 38 deegre C. if the temperature on friday was 39 deerge C. find the temperature on Tuesday ?

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• b
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The average monthly expenditure of a family was Rs 2200 during first 3 months, Rs 2550 during next 4 months and Rs 3120 during last 5 months of the year. If the total saving during the year was Rs 1260, find average monthly income ?

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The average age of A and B is 20 years. If C were to replace A, the average would be 19 and if C were to replace B, the average would be 21. what are the ages of A, B and C ?

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The average weight of 15 students in a class is increased by 1.5 kg when one the students weighting 40 kg is replaced by a new student. Find the weight of the new student ?

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