If weight of 8 cubes is equal to weight of 6 balls, then whichof the following would ALSOweigh the same *
Answers
Answer:
If you don't know whether the odd ball is lighter than the others or heavier than the others, identifying the odd ball is not possible with a maximum of two weighings.
But if you do know that it is lighter or that it is heavier, it is possible. For now, letʻs consider the case where the odd ball is lighter than the others. (If itʻs heavier than the others, the solution applies the same logic.)
Weighing 1: Place 3 balls on each side and keep the remaining 2 balls off to the side.
If the scale balances, we know the odd ball is one of the 2 we left to the side.
Weighing 2A: Weigh the two remaining balls to determine the lighter ball. Done.
But if the scale doesn't balance, the odd ball is on the lighter side. Remove the balls from the heavy side.
Weighing 2B: From the 3 balls put that were on the lighter side, put one ball on each side and keep the third ball off to the side.
If the scale balances, the odd ball is the one you left off to the side.
Otherwise, the odd ball is the lighter ball on the scale.