The average of five numbers is 306.4. The average of the first two numbers is 431 and the average of the last two numbers is 214.5. What is the third number?
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1
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The average weight of 10 oarsmen in a boat is increased by 1.5kg when one of the crew who weighs 58kg is replaced by a new man.
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2
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The average of six number is x and the average of three of these is y. the average of the remaining three is z, then
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3
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Find the average of 205, 302, 108, 403, and 202
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4
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Find the average of the following sets of scores:385, 441, 876, 221, 536, 46, 291, 428
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5
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The average age of husband and his wife was 23 years at the time of their marriage. After five tears they have a oneyear old child. The average age of the family of three, when the child was born, was
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6
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The average of the first five multiples of 3 is
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7
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A cricketer had a certain average of runs for his 64 innings. In his 65th innings, he is bowled out for no score on his part. This brings down his average by 2 runs. His new average of runs is :
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8
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The average temperature for Wednesday, Thursday and Friday was 40°C. The average for Thursday, Friday and Saturday was 41° C. If temperature on Saturday was 42° C, what was the temperature on Wednesday?
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9
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The average of X1, X2 and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1?
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10
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The average monthly salary of 12 workers and 3 managers in a factory was Rs. 600. When one of the manager whose salary was Rs. 720, was replaced with a new manager, then the average salary of the team went down to 580. What is the salary of the new manager?
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