10th Class Mathematics Solved Paper - Mathematics-2015 Delhi Term-II Set-III

  • question_answer
    All red face cards are removed from a pack of playing cards. The remaining cards were well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is:
    (i) a red card
    (ii) a face card
    (iii) a card of clubs

    Answer:

    Total number of possible outcomes \[=52-6=46\]
    [\[\because \] No. of red face cards \[=6\]]
    (i) Let \[{{E}_{1}}\] be the event of getting a red card.
    Favourable outcomes = 10 of heart + 10 of diamond
    \[\therefore \] No. of favourable outcomes \[=20\]
    \[\therefore \] P (getting a red card) \[=P({{E}_{1}})=\frac{20}{46}=\frac{10}{23}\]
    (ii) Let \[{{E}_{2}}\] be the event of getting a face card
    Favourable outcomes \[=3\]of club + 3 of spade
    \[\therefore \] No. of favourable outcomes \[=6\]
    \[\therefore \]P (getting a face card) \[=P({{E}_{2}})=\frac{6}{46}=\frac{3}{23}\]
    (iii) Let \[{{E}_{3}}\] be the event of getting a card of clubs Favourable outcomes \[=13\] of clubs
    \[\therefore \] No. of favourable outcomes \[=13\]
    \[\therefore \] P (getting a card of clubs) \[=P({{E}_{3}})=\frac{13}{46}\]


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