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In a box, there are 8 orange, 7 black and 6 white balls. If one ball is picked up randomly. What is the probability that it is neither orange nor white?
A. 2/3
B. 3/4
C. 7/19
D. 8/21
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- QUESTION IS WRONG .THERE SHOULD BE neither "BLACK" nor white?
then the ans will be come 8/21
.because total balls are 21
and neither black nor white .
so favor case will be only 8C1
and total case 21C1
probability will be 8C1/21C1=8/21
and if we solve the question according to the neither orange nor white
then ans will be 7C1/21C1=1/3
and this is not option
- 8 years agoHelpfull: Yes(0) No(0)
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