एक व्यक्ति और उसके पुत्र की औसत आयु 55 वर्ष है। उनकी आयु का अनुपात क्रमशः 7 ∶ 4 है। 6 वर्ष बाद उनकी आयु का अनुपात क्या होगा?

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SSC CGL 2022 Tier-I Official Paper (Held On : 12 Dec 2022 Shift 2)
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  1. 2
  2. 12  7
  3. 25  17
  4. 38  23

Answer (Detailed Solution Below)

Option 4 : 38  23
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दिया गया है:

एक व्यक्ति और उसके पुत्र की औसत आयु 55 वर्ष है।

उनकी आयु का अनुपात क्रमशः 7 ∶ 4 है।

गणना:

माना कि व्यक्ति और उसके पुत्र की आयु क्रमश: 7x और 4x है।

प्रश्नानुसार,

(7x + 4x) = 55 × 2

⇒ 11x = 110

⇒ x = 10

अब, 6 वर्ष बाद उनकी आयु का अनुपात

⇒ (7 × 10 + 6) : (4 × 10 + 6)

⇒ 76 : 46 = 38 : 23

∴ 6 वर्ष बाद उनकी आयु का अनुपात 38 : 23 है।

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