Arithmetic Aptitude :: Average
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Average of five numbers is 20. If each number is multiplied by 2, what will be the new average?
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If the average of three consecutive even numbers is 34, find the largest of these numbers.
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10 typists can type 600 pages in 8 hours.Find the average number of pages typed by each typist in an hour.
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The average of Sohan's marks in 6 subjects is 74. If his average in five subjects excluding science is 70, how many marks he obtained in science?
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Average age of a group of 30 boys is 16 years. A boy of age 19 leaves the group and a new boy joins the group. If the new average age of the group is 15.8 years, find the age of the new boy.
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The average weight of 10 men is decreased by 2 kg when one of them whose weight is 60 kg is replaced by a new man. What is the weight of the new man?
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The average age of 30 boys in a class is 15 years. If we include the age of two teachers the average age increases by 1. Find the sum of ages of the two teachers.
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The average age of the committee of 10 members is 40 years. A member of age 52 retires and a new member of age 38 takes his place. What is the average age of the present committee?
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Four years ago, the average age of A and B was 20 years. If today average age of A, B and C is 25 years, what will be age of C after 7 years?
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= 34
= 34
= 15.8
= 
= = 38.6 years