x3331 या संख्येला 11 ने भाग जात असल्यास x चे दर्शनी मूल्य किती असेल?

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RRB ALP CBT I 17 Aug 2018 Shift 2 Official Paper
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  1. 5
  2. 4
  3. 2
  4. 3

Answer (Detailed Solution Below)

Option 3 : 2
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दिलेल्याप्रमाणे:

x3331

वापरलेली संकल्पना:

जर एखाद्या संख्येच्या पर्यायी अंकांच्या बेरजेच्या फरकाला 11 ने भाग जात असेल, तर त्या संख्येला 11 ने निःशेष भाग जातो.

गणना:

x3331 च्या वैकल्पिक स्थानाच्या अंकांच्या बेरजेमधील फरक

⇒ (x + 3 + 1) - (3 + 3)

⇒ x + 4 - 6

⇒ x - 2

आता, x फक्त 2 असू शकतो जे (x - 2) = 0 बनवते ज्याला 11 ने भाग जातो. (∵ x हा 1 ते 9 पासून सुरू होणारा कोणतीही पूर्णांक असू शकतो)

तर, x = 2

∴ x चे दर्शनी मूल्य 2 आहे.

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