यदि वर्ग की भुजा (2x + 5) सेमी है और परिमाप 28 सेमी है। x का मान ज्ञात कीजिए?

  1. 1
  2. 2
  3. 3
  4. 4

Answer (Detailed Solution Below)

Option 1 : 1
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RRB Group D Full Test 1
100 Qs. 100 Marks 90 Mins

Detailed Solution

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दिया गया है:

भुजा = (2x + 5) सेमी

परिमाप = 28 सेमी

प्रयुक्त सूत्र:

परिमाप = 4 × भुजा

गणना:

भुजा = (2x + 5) सेमी

परिमाप = 4 × भुजा

⇒ 28 = 4(2x + 5)

⇒ 2x + 5 = 7

⇒ 2x = 2

⇒ x = 1

 x का मान 1 है। 

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