Questions
If for the two positive numbers, then the ratio of the numbers is
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a
4:1
b
3:2
c
3:4
d
2:3
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Correct option is A
Let the numbers be a and b. Then, 2aba+bab=45⇒2aba+b=45⇒a+b2ab=54⇒a+b+2aba+b−2ab=5+45−4⇒a+ba−b2=91⇒a+ba−b=31⇒ab=3+13−1⇒ab=41Applying componendo and dividendoSimilar Questions
If two geometric means g1 and g2 and one arithmetic mean A be inserted between two numbers, then
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