तीन संख्याएँ m, n और p इस प्रकार हैं कि m और n का योग 144 है, n के तीन गुने और p के पाँच गुने का योग 464 है, और p और m का योग 160 है, तो p का मान क्या है?

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RRB PO Prelims Memory Based Paper (Held On: 4 August 2024 Shift 3)
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  1. 62
  2. 56
  3. 88
  4. 64
  5. 96

Answer (Detailed Solution Below)

Option 4 : 64
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दिया गया है:

1) m + n = 144

2) 3n + 5p = 464

3) p + m = 160

गणनाएँ:

समीकरण 1 से m = 144 - n को समीकरण 3 में प्रतिस्थापित करें:

p + (144 - n) = 160

p + 144 - n = 160

⇒ p = 16 + n

अब p = 16 + n को समीकरण 2 में प्रतिस्थापित करें:

3n + 5(16 + n) = 464

⇒ 3n + 80 + 5n = 464

⇒ 8n + 80 = 464

⇒ 8n = 464 - 80

⇒ 8n = 384

⇒ n = 384 / 8 = 48

n = 48 को p = 16 + n में प्रतिस्थापित करें:

⇒ p = 16 + 48 = 64

∴ p का मान 64 है।

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