Twenty identical cards are numbered 1 to 20. The cards are well-shuffled and then a card is drawn at random. Find the probability that the number on the card is: (i) a prime number (ii) a perfect square (iii) a multiple of 4 and 5 (iv) a multiple of 4 or 5.
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(i)40% Chance
(ii)15% Chance
(iii)5% Chance
(iv)40% Chance
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