In a jar there are balls in different colors: blue, red, green and yellow.
The probability of drawing a blue ball is 1/8.
The probability of drawing a red ball is 1/5.
The probability of drawing a green ball is 1/7.
If a jar cannot contain more than 500 balls, how many yellow balls are in the Jar?  Choose the correct choice from the following options: A) 125. B) 124. C) 133. D) 140. E) 149.
We need to get some number which is less than 500 and exactly divisible by 8,5 and 7   Lets take LCM of three balls 8,5 and 7 = 280.   The probability of drawing a blue ball is 1/8...For every 8 balls we get 1 BLUE ball then out of 280 balls we get 35 BLUE balls.   The probability of drawing a red ball is 1/5...For every 5 balls we get 1 RED ball then out of 280 balls we get 56 REB balls.   The probability of drawing a green ball is 1/7. For every 7 balls we get 1 GREEN ball then out of 280 balls we get 40 GREEN BALLS.   Then out of 280 - ( 35 + 56 + 40 )= 
<gadget id="calculator">280 - ( 35 + 56 + 40 )</gadget>
<output>149</output>
149 YELLOW balls.   IMO option 149. is correct.
<result>E</result>
In a jar there are balls in different colors: blue, red, green and yellow.
The probability of drawing a blue ball is 1/8.
The probability of drawing a red ball is 1/5.
The probability of drawing a green ball is 1/7.
If a jar cannot contain more than 500 balls, how many yellow balls are in the Jar?