CA Foundation P3 · Chapter 1 · Question 4 of 9
The mean proportional between 12 and 75 is:
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: A) 30
Explanation
The mean proportional between a and b is √(ab). Here √(12 x 75) = √900 = 30. The value 43.5 is the arithmetic mean (12 + 75)/2, which is a common confusion.
More Ratio and Proportion, Indices and Logarithms MCQs
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