\(a\;:b = \frac{3}{2}\;:\;\frac{7}{3}\) , \({\rm{b\;}}:{\rm{c}} = \frac{1}{5}\;:\;\frac{1}{7}\) ആണെങ്കിൽ, a : b : c കണ്ടെത്തുക.

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RRC Group D Previous Paper 28 (Held On: 26 Sept 2018 Shift 2)
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  1. 14 : 9 : 10
  2. 9 : 14 : 10
  3. 10 : 9 : 14
  4. 4 : 5 : 7

Answer (Detailed Solution Below)

Option 2 : 9 : 14 : 10
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Detailed Solution

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\(a:b = \frac{3}{{2\;}}\;:\;\frac{7}{3}\)

രണ്ട് പദങ്ങളെയും 6 കൊണ്ട് ഗുണിച്ചാൽ, നമുക്ക് ലഭിക്കുന്നത് 

⇒ a : b = 9 : 14

ഒപ്പം 

\({\rm{b}}:{\rm{c}} = \frac{1}{5}\;:\;\frac{1}{7}\)

രണ്ട് പദങ്ങളെയും 35 കൊണ്ട് ഗുണിച്ചാൽ, നമുക്ക് ലഭിക്കുന്നത് 

⇒ b : c = 7 : 5 or 14 : 10

അതിനാൽ,

a : b : c = 9 : 14 : 10

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