A box contains cards numbered 11 to 20 . A card is drawn at random from the inbox . Find the probablity that the number of the drawn card is (1) a square number (2) a multiple of 7
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Ans 1.1÷10.because only sqare of 4 lie between 11 to 20
2.1÷10 which is 14
2.1÷10 which is 14
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(1) Probability of getting a square number
= favourable outcomes / total outcomes
= 1 / 10
(2) Probability of getting a multiple of 7
= favourable outcomes / total outcomes
= 1 / 10
= favourable outcomes / total outcomes
= 1 / 10
(2) Probability of getting a multiple of 7
= favourable outcomes / total outcomes
= 1 / 10
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