Express \(0.\overline{52}\) in the form \(\frac{p}{q}\) where p and q are integers and q ≠ 0

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RRB Technician Grade III Official Paper (Held On: 28 Dec, 2024 Shift 2)
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  1. \(\frac{50}{99}\)
  2. \(\frac{52}{99}\)
  3. \(\frac{52}{90}\)
  4. \(\frac{53}{99}\)

Answer (Detailed Solution Below)

Option 2 : \(\frac{52}{99}\)
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Detailed Solution

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Given:

Express 0.\(\overline{52}\) in the form \(\dfrac{p}{q}\), where p and q are integers and q ≠ 0.

Formula used:

Let x = 0.\(\overline{52}\)

Multiplying both sides by 100 to shift the decimal point two places to the right:

100x = 52.\(\overline{52}\)

Then, subtract the original equation from this new equation:

Calculations:

100x = 52.\(\overline{52}\)

x = 0.\(\overline{52}\)

⇒ 100x - x = 52.\(\overline{52}\) - 0.\(\overline{52}\)

⇒ 99x = 52

⇒ x = \(\dfrac{52}{99}\)

∴ The correct answer is option (2).

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