Question
If the mean proportion of 4.8 and 1.2 is 'k', then find
the value of '6k'.Solution
Mean proportion of two numbers 'a' and 'b' = √ab
So, 'k' = √(4.8 X 1.2) = √5.76 = 2.4
Required value = 6 X 2.4 = 14.4
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