If A is 25% less than B, then what will be the value of (2B - A)/A ?

This question was previously asked in
SSC GD Previous Paper 3 (Held On: 11 Feb 2019 Shift 3)
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  1. 5/4
  2. 3/2
  3. 3/4
  4. 5/3

Answer (Detailed Solution Below)

Option 4 : 5/3
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Detailed Solution

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Given:

A = 75% of B

Calculation:

A = 3/4 of B

⇒ A/B = 3/4

Let the value of A be 3x and B be 4x

So (2B – A)/A = (2 × 4x – 3x)/3x

⇒ (2B – A)/A = 5x/3x

∴ (2B – A)/A = 5/3

Short Trick:

Ratio of A : B = 3 : 4

∴ (2B – A)/A = (8 – 3) /3 = 5/3

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