exam
Maths Puzzle
Numerical Ability
{m,o,n,e,y}=[r,i,c,h} is this true or false
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exam Other Question
I tried to find the answer to this question, but was totally confused.
One card is selected at random from a standard 52-card deck of playing cards. Find the probability that the card selected is not a spade.
What does a "!" mean in algebra? Example: (n+1)!
Thanks!