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.
73 Kg
64 Kg
12 Kg
34 Kg
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1
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The average of 20 students is 12 years, if the teacher's age is included, average increases by one. The age of the teacher is:
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2
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The average of 25 results is 18. The average of first 12 of those is 14 and the average of last 12 is 17. What is the 13th result?
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3
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The average of six numbers is x and the average of three of these is y. If the average of the remaining three is z, then-
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4
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The average of the first five multiples of 3 is-
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5
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Find the average of 1.11, 0.01, 0.101, 0.001, 0.11 = ?
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6
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The average of the largest and smallest 3 digits numbers formed by 0, 2 and 4 would be :
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7
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A library has an average of 510 visitors on Sundays and 240 on other days. What is the average number of visitors per day in the month of June beginning with a Sunday?
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8
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Four years ago, the average age of a family of four persons was 18 years. During this period, a baby was born. Today if the average age of the family is still 18 years, the age of the baby is
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9
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Amount five people with monthly income (in Rs.) 15000, 26000, 16000, 19000, 50000, how many will have income less than the mean income of five people?
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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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