Q341
Open questionIf the average marks of three batches of 55, 60 and 45 students respectively is 50, 55 and 60, then the average marks of all the students is :
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Q342
Open questionFind the average of cubes of first 49 positive integers.
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Q343
Open questionIn a family of 5 members, the average age at present is 33 years. The youngest member is 9 years old. The average age of the family just before the birth of the youngest members was :
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Q344
Open questionA man spends his three months income in four month time. If his monthly income is Rs. 1000 then his annual savings is ?
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Q345
Open questionAverage weight of 25 persons is increased by 1 kg when one person weighing 60 kg is replaced by a new person. Weight of new the person is-
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Q346
Open questionThe average age of Ram and his two children is 17 years and the average age of Ram's wife and the same children is 16 years. If the age of Ram is 33 years, the age of his wife is (in years) :
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Q347
Open questionThe average weight of 12 parcels is 1.8 kg. Addition of another new parcel reduces the average weight by 50 gm. What is the weight of the new parcel ?
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Q348
Open questionSix tables and twelve chairs were bought for Rs. 7800. If the average price of a table is Rs. 750, then the average price of a chair would be :
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Q349
Open questionThe average of six numbers is 20. If one number is removed, the average becomes 15. What is the number removed ?
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Q350
Open questionThe average age of four brothers is 12 years. If the age of their mother is also included, the average is increased by 5 years. The age of the mother (in years) is :
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Q351
Open questionMean of 10 numbers is 30. Later on it was observed that numbers 15, 23 are wrongly taken as 51, 32. The correct mean is :
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Q352
Open questionThe average age of a family of 10 members is 20 years. If the age of the youngest member of the family is 10 years, then the average age of the members of the family just before the birth of the youngest member was approximately.
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Q353
Open questiona, b, c, d, e, f, g are consecutive even numbers. j, k, l, m, n are consecutive odd numbers. The average of all the numbers is :
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Q354
Open questionOut of four numbers the average of the first three is 16 and that of the last three is 15. If the last number is 20, than first number is :
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Q355
Open questionMukesh has twice as much money as Soham. Soham has 50% more money than Pankaj. If the average money with them is Rs. 110, then Mukesh has :
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Q356
Open questionThe mean high temperature of the first four days of a week is 25°C whereas the mean of the last four days is 25.5°C. If the mean of the whole week is 25.2°C then the temperature of the 4th day is :
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Q357
Open questionIf the average of x and (x 0) is M, then the average of x2 and is :
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Q358
Open questionThe average weight of 3 men, A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E whose weight is 3 kg more than that of D, replaces A then the average weight of B, C, D and E becomes 79 kg. What is the weight of A ?
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Q359
Open questionAverage of two numbers is 8 and average of other three numbers is 3; the average of the five numbers is :
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Q360
Open questionAn elevator can carry maximum of 16 passengers with an average weight of 80 kg. However, four boys more than the maximum carrying capacity of the elevator entered it making the average weight as 86 kg and overloading the elevator. What is the average weight of those four boys ?
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