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The ratio of A and B is 3:4. If A is increased by 20% and B is increased by 10%, what will be the new ratio?
  1. 6 : 7
  2. 4 : 5
  3. 9 : 11
  4. None of these
Explanation

Initial ratio A : B = 3 : 4  

Let A = 3x, B = 4x  

A is increased by 20%  

New A = 3x + 20% of 3x = 3x + 0.6x = 3.6x  

B is increased by 10%  

New B = 4x + 10% of 4x = 4x + 0.4x = 4.4x  

New ratio = 3.6x : 4.4x = 36 : 44  

Divide by 4:  

36 / 4 : 44 / 4 = 9 : 11


Last verified on 09-07-2026

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