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Ten cards numbered 1 through 10 are plac...

Ten cards numbered 1 through 10 are placed in box, mixed up thoroughly and then one card is drawn randomly. If it is known that the number on the drawn card is more than 3, what is the probability that it is an even number?

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Total numbers more than `3=4,5,6,......,10=7`
Even numbers more than `3=4,6,8,10=4`
probability`=4/7`​
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