दोन संख्यांमधील फरक 5 आहे. लहान संख्येतून 25 वजा केल्यास आणि मोठ्या संख्येत 20 मिळवल्यास गुणोत्तर 1 : 2 होईल. तर मोठी संख्या कोणती?

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  1. 80
  2. 90
  3. 85
  4. 75

Answer (Detailed Solution Below)

Option 1 : 80
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Detailed Solution

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दिलेल्याप्रमाणे:

दोन संख्यांमधील फरक = 5

लहान संख्येतून 25 वजा केल्यास आणि मोठ्या संख्येत 20 मिळवल्यास गुणोत्तर = 1 : 2

गणना:

समजा मोठी संख्या आणि लहान संख्या अनुक्रमे x आणि (x – 5) आहे

आता, प्रश्नानुसार,

(x – – 25) : (x + 20) = 1 : 2

⇒ (x – 30)/(x + 20) = 1/2

⇒ 2x – 60= x + 20

⇒ x = 80

मोठी संख्या 80 आहे.

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