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If (x + y – z) : (y – z + 2w) : (2x + z – w) = 2 : 3 : 1, then the ratio of (5w – 3x – z) : 3w = ?
1. 4 : 3
2. 5 : 3
3. 2: 3
4. 5 : 2

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Correct Answer - Option 3 : 2: 3

Given:

(x + y – z) : (y – z + 2w) : (2x + z – w) = 2 : 3 : 1

Calculation:

(x + y – z) : (y – z + 2w) : (2x + z – w) = 2 : 3 : 1

⇒ (x + y – z) + (2x + z – w) = (y – z + 2w)

⇒ 3x + y – w = y – z + 2w

⇒ – 3w = – 3x – z

Now,

(5w – 3x – z) : 3w

⇒ (5w – 3w) : 3w

⇒ 2w : 3w

⇒ 2 : 3

∴ Required ratio is 2 : 3

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