There are 27 balls, of which 1 is heavier. given a balance how many times you need to weigh to find out the odd ball. Choose the correct choice from the following answers:  A) 7 times  B) 2 times  C) 3 times  D) 5 times  E) 9 times
first make 3 groups of 9 balls each...   then weight 2 group using balance which tells u which group is having the heavier ball...   then split dat group into 3 groups each containing 3 balls...   then follow same procedure...   in 3 times u get heavier ball   ANSWER:3 times
<result>C</result>
There are 27 balls, of which 1 is heavier. given a balance how many times you need to weigh to find out the odd ball.