Question
A card is drawn randomly from a deck of ordinary playing
cards. You win Rs.900 if the card is a spade or a king. What is the probability that you will win the game?Solution
Let S = the event that the card is a spade; and let A = the event that the card is a King. We know the following: There are 52 cards in the deck. There are 13 spades, so P(S) = 13/52. There are 4 King, so P(A) = 4/52. There is 1 King that is also a spade, so P(S ∩ A) = 1/52. Therefore, based on the rule of addition: P(S ∪ A) = P(S) + P(A) - P(S ∩ A) P(S ∪ A) = 13/52 + 4/52 - 1/52 = 16/52 = 4/13.
Select a figure from amongst the Answer Figures.
<...
 Select a figure from amongst the Answer Figures.
...
 Study the given pattern carefully and select the number that can replace the question mark (?) in it.
Select a figure from amongst the Answer Figures.
 How Many Triangles are there in the given figure?
Choose a figure which would most closely resemble the unfolded form of figure (Z).
Select the figure which will come next in the following figure series.
