self Maths Puzzle

There are k baskets and n balls. The balls are put into the baskets randomly. If k

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self Other Question

5 kg of adulterated rice has 2% stones in it and the rest is rice. Half of the stone
content was removed. Now the percentage of stone content in it is
1. 0.99%
2. 1%
3. 1.1%
4. 1.01% In a bag containing only blue, red and green marbles, all but 15 are blue, all but
13 are red and all but 12 are green. How many are red?
1. 13
2. 7
3. 25
4. 20