Question
Five articles out of which 3 are cups and rest are
glasses have to be arranged on a shelf. Find the number of ways of arrangement in which all three cups are not placed together.Solution
Since there are 5 articles, total number of ways of arrangement = 5! = 120 ways
If we consider 3 cups as one article, therefore, number of ways of arrangement of cups among themselves = 3! = 6 ways
Number of ways of arrangement of remaining three articles = 3! = 6 ways
Therefore, required number of ways = 120 – (6 × 6) = 84 ways
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Some animal are mammal.
Some mammal are herbivore.
No herbivore is carnivore.
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All Awards re Beginners
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Only a few Colour is Animals
Some Animals is Birds
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Few Battery are phone
None of the Power bank are battery.
Conclusion
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All hole are whole.
Each whole is lot.
Some hole are combo.
No whole is pack.
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I. Some...
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I. No Lid being Utensil is a possibility.
II. Some Spoons are not Plates.
III. Some Spoons are Cups.
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All blues are greens.
Some greens are not yellows.
Conclusion...
Some fans are not switches. Some switches are not coolers. All invertors may be switches.
