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Question

Pick the odd one out.
  1. 23
  2. 915
  3. 1218
  4. 69


Solution

The correct option is B 915
2369 and 1218 are the fractions which look different but are of the same value.
i.e.,69=3×23×3=23
1218=4×36×3=46=2×22×3=23

These fractions are called equivalent fractions.
You can get many equivalent fractions from a fraction by simply multiplying or dividing both numberator and denominator of that fraction.
Here, 23=69=1218 are equivalent fractions.
So, 2128 is the odd one here.

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