There are 27 pearls in a bag. One among them is less in weight. You have been given 2 pan weight machine. In how many trials, you will be able to find the defected one?  Choose the most appropriate option:
A) 4
B) 3
C) 11
D) 13
E) 18
First we would take 13 perls in each pan and if we found that both are equal then the remaining perl(which has not taken for weighing) is having less weight or if there is an imbalance in either side of the pan we would consider those perls to find out the less weight perl. In this way there would be 4 stages at max to find out the less weighing perl by repaeting the same process as 1st. so answer is 4   4NSWER:4
<result>A</result>
There are 27 pearls in a bag. One among them is less in weight. You have been given 2 pan weight machine. In how many trials, you will be able to find the defected one?