Problem solving: Test your approach
A pack of card has letters on one side and numbers on the other.
If there is a vowel (a,e,i,o,u) on one side there is an even (2,4,6,8 etc..) number on the other.
There are 4 cards drawn on the table in front of you; an E, a K, a 4, and a 7 are facing up:
The question is:
WHICH TWO CARDS WOULD YOU NEED TO TURN OVER TO DECIDE WHETER THE STATEMENT IS TRUE OR FALSE?