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OpenStudy (anonymous):
A box contains 4 black and 5 red balls and another box contains 5 black and 4 red balls. One ball is to be drawn from either of the two boxes. What is the probability of drawing a black ball?
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OpenStudy (anonymous):
do you have any options for answers?
hartnn (hartnn):
@Amu_me Hi, \(\huge \color{red}{\text{Welcome to Open Study}}\ddot\smile\)
hartnn (hartnn):
have you tried this ?
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