identical ball
Computer Science
Level
2
You have 4 identical balls A,B,C and D But one of them has a different weight and you have abalance scale which can weight at most two times. you have to choose the different ball. What is the steps?
first time weight A with B,second time weight C with D.
first time weight A & B with C & D, second time weight A or B with C.
first time weight A with B, second time weight A or B withC or D.
first time weight A & B with C & D, second time weight A or B with D.
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