Spot the one that does not belong

Exercise and reference answers

Questions

1. Items

   1. 1/4
   2. 25%
   3. 1/5

   Odd item

   1/5

2. Items

   1. Discount
   2. Ratio
   3. Fraction

   Odd item

   Discount

3. Items

   1. Out of 100
   2. Per annum
   3. Per cent

   Odd item

   Per annum

Explanation