Question

find thr odd one out. radio radar, washing machine, television.
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Answer 1

The odd one out from this pair is -  Washing Machine.  

Reason -  

 1) All the other things ( radio,  television and radar ) works on frequency  i.e. they need electronic waves to work but washing machine does not require such medium.  It simply works on electric connection through wires and switch.  

2) Radar, radio and television are used in communication but washing machine is not involved in such tasks.

So,  the correct answer is Washing Machine.