Averages & Ages — practice questions, page 11
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QuestionA dairy sold an average of 180 litres of milk a day over the first 10 days of a 30-day month. Over…QuestionThe ages of the four members of a household add up to 124 years today. How many years from now…QuestionSudha is 34 years old today and her younger brother is 22. What was Sudha's age when her brother…QuestionSix students sat a test marked out of 50 and their average was 42 marks. What is the least mark…QuestionWhen one member of a 15-strong walking club is replaced by a new member, the club's average age…QuestionBy how much does the average of the first 20 even numbers exceed the average of the first 20 odd…QuestionRehan is 30 years older than his son and 3 years older than his wife. The son's age will be double…QuestionIn a small workshop 5 people earn ₹18,000 a month each, 3 earn ₹26,000 each and 2 earn ₹40,000…
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