Quantitative Aptitude • Ratio, Average & MixtureMedium
What is the mean proportional between 48 and 192?
A. 96✓ Correct Answer
B. 120
C. 192
D. 99
💡 Solution & Explanation
The mean proportional between two numbers a and b is √(a × b). Here √(48 × 192) = √9216 = 96. Check: 48 : 96 = 96 : 192, because 48 × 192 = 96 × 96 = 9216. The average (120) is a different idea.
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