GRE
The number of positive integers that are factors of both 24 and 30 but are not factors of 20
The number of positive integers that are factors of both 20 and 30 but are not factors of 24
The distance between $$Q$$ and the center of the circle
The length of line segment $$PQ$$
The length of chord $$RS$$
$$6$$
The number of positive integers that are factors of both $$24$$ and $$30$$ but are not factors of $$20$$
The number of positive integers that are factors of both $$20$$ and $$30$$ but are not factors of $$24$$
25000 +道题目
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