TCS Previous Year Aptitude
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Q 1. 2/3rd of the balls in a bag are blue, the rest are pink. if 5/9th of the blue balls and 7/8th of the pink balls are defective, find the total number of balls in the bag given that the number of non-defective balls is 146?
Solution-: let total no of balls =x
total no of defective balls = 10x/27 +7x/24
non defective balls=x-143x/216=146
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