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Question

What is the least rationalising factor of 44?


  1. 5

  2. 2

  3. 43

  4. 11


Solution

The correct option is D

11


We can write 44 as 2×2×11

44=2×2×11

=211

The rationalizing factor should be such that if we multiply it with 211, we get a rational number.

 Hence, the least rationalizing factor is 11 as 211×11=2×11=22, which is a rational number

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