How many different 5-letter words (with or without meaning) can be constructed using all the letters of the word ‘DELHI’ so that each word has to start with D and end with I?
24
18
12
6
D _ _ _ I We have three places and three letters E, H, L which can be arranged in 3! = 6 ways. So the correct option is (d). This is a question from permutations and combinations. If you don’t know the topic, you can try doing it manually as well which may take some time.
For election to the Lok Sabha, a nomination paper can be filed by
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In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
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Which among the following events happened earliest ?
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An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
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