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hardik

· started a discussion

· 1 Months ago

we can solve like this also (Question: 203883.0 )

((2*10)-1)/((3*10)-1)=19/29

similarly

80-1/70-1=79/69

Question:

Select the correct alternative from the given choices.

\(\cfrac{2}{3}\) : \(\cfrac{19}{29}\) :: \(\cfrac{8}{7}\): ?

Options:
A) \(\cfrac{89}{79}\)
B) \(\cfrac{79}{79}\)
C) \(\cfrac{73}{65}\)
D) \(\cfrac{80}{70}\)
Solution:
As,

\(\cfrac{(2\times9)+1}{(3\times9)+2} \ \ \Rightarrow\) \(\cfrac{18+1}{27+2} \ \Rightarrow\) \(\cfrac{19}{29}\)

Similarly,

\(\cfrac{(8\times9)+1}{(7\times9)+2} \ \ \Rightarrow\) \(\cfrac{72+1}{63+2}\)  \(\Rightarrow \cfrac{73}{65}\)

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