निम्नलिखित में से ऐसे गणितीय चिह्नों के सही युग्म का चयन कीजिये जिन्हें बायीं ओर दिए गये समीकरण की संख्याओं के मध्य में रखने पर बाँया पक्ष = दाँया पक्ष प्राप्त हो। 

5 * 0 * 3 * 5 = 20 

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RRB ALP Previous Paper 5 (Held On: 10 Aug 2018 Shift 3)
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  1. + × -
  2. - + ×
  3. × + -
  4. + - ×

Answer (Detailed Solution Below)

Option 2 : - + ×
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दिया गया समीकरण: 5 * 0 * 3 * 5 = 20

बोडमास तालिका:

आइये प्रत्येक विकल्प को एक-एक करके जाँचें।

विकल्प 1) + × -

दिया गया: 5 * 0 * 3 * 5

* चिन्हों को प्रतिस्थापित करने के बाद हमें मिलता है;

⇒ 5 + 0 × 3 - 5 = 20

5 + 0 - 5 = 20

5 - 5 = 20

⇒ 0 ≠ 20

⇒ बायाँ पक्ष ≠ दायाँ पक्ष

विकल्प 2) - + ×

दिया गया: 5 * 0 * 3 * 5

* चिन्हों को प्रतिस्थापित करने के बाद हमें मिलता है;

⇒ 5 - 0 + 3 × 5 = 20

5 - 0 + 15 = 20

20 - 0 = 20

20 = 20

⇒ बायाँ पक्ष = दायाँ पक्ष

विकल्प 3) × + -

दिया गया: 5 * 0 * 3 * 5

* चिन्हों को प्रतिस्थापित करने के बाद हमें मिलता है;

5 × 0 + 3 - 5 = 20

0 + 3 - 5 = 20

3 - 5 = 20

⇒ -2 ≠ 20

⇒ बायाँ पक्ष ≠ दायाँ पक्ष

विकल्प 4) + - ×

दिया गया: 5 * 0 * 3 * 5

* चिन्हों को प्रतिस्थापित करने के बाद हमें मिलता है;

⇒ 5 + 0 - 3 × 5 = 20

5 + 0 - 15 = 20

5 - 15 = 20

⇒ -10 ≠ 20

⇒ बायाँ पक्ष ≠ दायाँ पक्ष

अतः, सही उत्तर "विकल्प 2" है।

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