Question

a bag contains 40 balls some of which are red S and some of which are yellow and the rest are black the probability of drawing a red ball and yellow ball at random from the bag are 1 by 4 and 2 by 5 respectively find the probability of drawing a black ball at random from the bag 2 X + 1 Red balls and X + 20 was added to the back while x minus 3 black balls are removed from the bag the probability of drawing a yellow ball at random from the bag is no 3 by 7 find an expression and terms of x for the total number of all total number of balls in the bag now the number of yellow balls in the bag now​

Answer 1

Answer:

don't know

Step-by-step explanation:

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