If \[y=\frac{a+b{{x}^{3/2}}}{{{x}^{5/4}}}\] and \[{y}'=0\] at \[x=5\], then the ratio \[a:b\] is equal to [AMU 2001]

If \[y=\frac{a+b{{x}^{3/2}}}{{{x}^{5/4}}}\] and \[{y}'=0\] at \[x=5\],

1.	If \[y=\frac{a+b{{x}^{3/2}}}{{{x}^{5/4}}}\] and \[{y}'=0\] at \[x=5\], then the ratio \[a:b\] is equal to [AMU 2001]
A.	\[\sqrt{5}:1\]
B.	5 : 2
C.	3 : 5
D.	1 : 2
Answer» B. 5 : 2

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If \[y=\frac{a+b{{x}^{3/2}}}{{{x}^{5/4}}}\] and \[{y}'=0\] at \[x=5\], then the ratio \[a:b\] is equal to [AMU 2001]

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