Q.

If a card is drawn at random from a packet of 200 cards numbered 1 to 200, the probability of drawing a number on the card that is a cube

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a

3200

b

125

c

140

d

150

answer is C.

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Detailed Solution

5C1  200C1=140  ∵the set of cubes below 200 is {13,23,33,43,53}
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