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Question

If ab = 83, then the ratio a+4b4b is .
  1. 1612
  2. 1212
  3. 1012
  4. 2012


Solution

The correct option is D 2012
Given:  ab=83
Multiplying the above equation by '4', it becomes:
a4b=84×3=812
a+4b4b=8+1212 (Using Componendo)
a+4b4b=2012
Hence, a+4b4b=2012

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