A boy was asked to write 25 × 92 but instead he wrote 2592. The numerical difference between two number is ______.

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NPCIL Assistant Grade-1 (Advance) Official Paper-II (Held On: 08 Sept, 2018)
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  1. 1
  2. 25
  3. 92
  4. 0

Answer (Detailed Solution Below)

Option 4 : 0
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NPCIL Assistant Grade 1 Computer Knowledge Subject Test - 01
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Detailed Solution

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Given:

A boy was asked to write 25 × 92 but instead he wrote 2592.

Formula used:

Numerical difference = Correct number - Incorrect number

Calculation:

Correct number = 25 × 92

⇒ Correct number = 32 × 81

Incorrect number = 2592

Numerical difference =2592 - 2592

⇒ Numerical difference = 0

∴ The correct answer is option (4).

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