There are 7 boxes, each box contain10 balls of 10 grams each. By chance one box containing 9 gram balls each. You will get one chance for weighing. You have to say in which box there and 9gram balls
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favourable outcomes = 1
total possible outcomes = 7
p ( weighing abox with 9 balls) = 1/7
shubham24551:
so in which box there are 9 gram ball??
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