x – 7y = -42 या समीकरणाचा आलेख y-अक्षाला P(α, β) वर छेदतो आणि 6x + y – 15 = 0 चा आलेख, x-अक्षाला Q(γ, δ) वर छेदतो म्हणजे काय? α + β + γ + δ चे मूल्य?

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SSC CGL Tier 2 Quant Previous Paper 4 (Held On: 11 September 2019)
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  1. 6
  2. 17/2
  3. 9/2
  4. 5

Answer (Detailed Solution Below)

Option 2 : 17/2
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⇒ जर समीकरण x – 7y = (-42) y-अक्षाला P(α, β) वर छेदत असेल, तर x = 0,

⇒ 0 – 7y = (-42)

⇒ y = 42/7 = 6

⇒ α = 0 आणि β = 6

जर 6x + y – 15 = 0 समीकरण, x-अक्षला Q(γ, δ) वर छेदत असेल, तर y = 0.

⇒ 6x + 0 = 15

⇒ x = 15/6 = 5/2

⇒ γ = 5/2 आणि δ = 0

आता, (α + β + γ + δ)

⇒ 0 + 6 + 5/2 + 0

⇒ 17/2

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