Case study based question is compulsory. Attempt any 4 sub-parts from question. Each sub-part carries 1 mark. During summer break.

Question

12. Case study based question is compulsory. Attempt any 4 sub-parts from question. Each sub-part carries 1 mark. During summer break. Harish wanted to play with his friends but it was too hot outside, so he decided to play some indoor game with his friends. He collects 20 identical cards and writes the numbers 1 to 20 on them fone number on one card?. He puts them in a box. He and his friends make a bet for the chances of drawing various cards out of the box. Each was given a chance to tell the probability of picking one card out of the box. Based on the above, answer the following questions: (i) The probability that the number on the card drawn is an odd prime number, is (a) \( \frac{3}{5} \) (b) \( \frac{2}{5} \) (c) \( \frac{9}{20} \) (d) \( \frac{7}{20} \) (ii) The probability that the number on the card drawn is a composite number is (a) \( \frac{11}{20} \) (b) \( \frac{3}{5} \) (c) \( \frac{4}{5} \) (d) \( \frac{1}{2} \)

Answer 1

ritika4618, hello

(i) (d) ⁷/₂₀ [3, 5, 7, 11, 13, 17, 19]

(ii) (a) ¹¹/₂₀ [4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20]

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