12, 18 और 6 का चौथा अनुपात, k और 6 के तृतीय अनुपात के समान है। k का मान क्या है?

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SSC CGL 2020 Tier-I Official Paper 6 (Held On : 16 Aug 2021 Shift 3)
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  1. 13.5
  2. 3√6
  3. 3
  4. 4

Answer (Detailed Solution Below)

Option 4 : 4
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दिया गया है:

संख्या = 12, 18 और 6

गणना:

12, 18 और 6 का चौथा समानुपात n है,

⇒ 12 : 18 :: 6 : n

⇒ 12/18 = 6/n

⇒ n = 9

तो,

k और 6 का तीसरा समानुपात 9 है,

⇒ k : 6 = 6 : 9

⇒ 9k = 36

⇒ k = 4

∴ k का मान 4 है

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