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⁞ Ratio And Proportion

Aptitude ➤ Ratio And Proportion ➤ 1
Question 1
Q1.  Find the mean proportional between 3 and 75.
 

Answer :  15


Let x be the required mean proportional . Then,
3 : x :: x : 75

∴ x = √(3×75) = 15.

♥ If three quantities a, b and c are in continued proportion, then a : b = b : c
∴ ac = b2
⚔ DISCUSS

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