exam Maths Puzzle Numerical Ability

a box of crayons contains one crayo of each of the folloeing colors:red,orange,yellow,blue,purple,black,white,pink.
(a)what is the probability of NOT choosing a 6-letter color?
(b)what is the complement of choosing green?

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exam Other Question

a tiangle has two interior angle of 1 degree each. How many degrees does its 3rd angle have? How do you multiply and divide positive and negative numbers?