A jar contains 4 black , 3 white & 2 pink colour cards .A card is choosen randomly. Find the probability choosen card is not black
1. 3/5
2. 4/9
3. 6/9
4. 5/9
5. 8/5
1. 3/5
2. 4/9
3. 6/9
4. 5/9
5. 8/5
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Correct Answer – Option 4 : 5/9
Given
Number of black card = 4
Number of white card = 3
Number of pink card = 2
Formula used
P(E) = Number of favourable outcomes/Total number of outcomes
Calculation
Let E is an event of drawing a card which is not black
Number of favourable cards = 3 + 2
⇒ 5
P(E) = 5/9