9 balls are there one of them is of higher wt and remaining
all are of same. given is one weighing scale and you can
use it two times. How will you find the heavy ball in two
trials only.
Answer Posted / kunal kapoor
start putting balls 1 by 1 on the weighing scale. note down the weight of the first ball, then sec. then third and so on.If the first ball is of same wt category as that of remaining 7 the we shall be getting a constant margin everytime we put new ball but if at any stage after counting margin, it comes diff then we shall be concluding that as the heaviest of all.
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