If the arithmetic mean of two numbers be...

If the arithmetic mean of two numbers be 10 and their harmonic mean is 7.5 , then what are two numbers ?

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CALCUTTA BOOK HOUSE-MEASURES OF CENTRAL TENDENCY-EXERCISE

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Donations (in rupees) are given for a fare by the 100 students of a sc...
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Find the average height of the students from the given table.
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Part of the weekly expenditure of 1000 families is given in the follow...
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Average monthly income of 50 persons is Rs 270.00 . Later on it is fou...
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The monthly salaries of 20 employees of a commercial enterprise are gi...
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The number of students in a class is 60 . The average of the ages of t...
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The arithmetic mean of two numbers is 10 and their geometric mean is 8...
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Find the geometric mean of the 2(2)/(7), 3, 1(3)/(4) and 1(1)/(3)
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Find the geometric mean of the 45,20,12,75 and 30
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If the arithmetic mean of two numbers be 10 and their harmonic mean is...
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A person have to go 4 kilometers away from a city. He has to go 2 kilo...
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While ascending a mountain, a car go 8 kilometre consuming one litre o...
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The average weight of the following frequency distribution is 58.5 kil...
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