Spot the one that does not fit

Exercise and reference answers

Questions

1. Items

   1. Force
   2. Mass
   3. Length
   4. Time

   Odd item

   Force

2. Items

   1. CGS
   2. FPS
   3. MKS
   4. Radian

   Odd item

   Radian

3. Items

   1. Parallax
   2. Two positions
   3. The basis
   4. A metre rule

   Odd item

   A metre rule

4. Items

   1. Seven base
   2. Two more units
   3. Radian
   4. Foot and pound

   Odd item

   Foot and pound

Instructions

Tap the item that does not belong with the rest.

Explanation