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The average of 10 numbers is P and the average of 4 of these numbers is Q. If the average of remaining numbers is R then which of the following is correct: |
3P = 2Q + 4R 5P = 3Q + 2R 5P = 2Q + 3R 4P = 2Q + 3R |
5P = 2Q + 3R |
Sum of age of 10 numbers = 10P Sum of age of 4 numbers = 4Q Now , Sum of age of remaining 6 is = 6R So , 10P = 4Q + 6R 5P = 2Q + 3R , is correct answer . |
