Number 350 is increased by 20% and then decreased by 25%. Find the new number. 

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SSC GD Constable (2022) Official Paper (Held On : 10 Jan 2023 Shift 2)
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  1. 320
  2. 3244
  3. 340
  4. 315

Answer (Detailed Solution Below)

Option 4 : 315
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Detailed Solution

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Given:

Number = 350

Increase = 20%

Decrease = 25%

Formula:

Percentage increase/decrease = (Increased or decreased value/original value) × 100

Solution:

First, we increase the number by 20%.

350 × (120/100) = 420

Then, we decrease the new number by 25%.

420 × (75/100) = 315

Therefore, the new number is 315.

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