एक वर्ग की भुजा 16 सेमी है। एक आयत का परिमाप, वर्ग के परिमाप का दोगुना है। यदि आयत की चौड़ाई 20 सेमी है, तो आयत की लंबाई कितनी होगी?

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RRB Clerk Prelims Memory Based Paper (Held On: 17 August 2024 Shift 1)
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  1. 32
  2. 44
  3. 56
  4. 25
  5. 64

Answer (Detailed Solution Below)

Option 2 : 44
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दिया गया है:

वर्ग की भुजा = 16 सेमी

आयत का परिमाप = 2 x वर्ग का परिमाप

आयत की चौड़ाई = 20 सेमी

प्रयुक्त सूत्र:

वर्ग का परिमाप = 4 x भुजा

आयत का परिमाप = 2 x (लंबाई + चौड़ाई)

गणना:

वर्ग का परिमाप = 4 x 16 = 64 सेमी

आयत का परिमाप = 2 x 64 = 128 सेमी

128 = 2 x (लंबाई + 20)

⇒ 128 = 2 x लंबाई + 40

⇒ 2 x लंबाई = 128 - 40

⇒ 2 x लंबाई = 88

⇒ लंबाई = 44 सेमी

∴ आयत की लंबाई 44 सेमी है।

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