Which one of the following is an example of non-empty set?
Set of all even prime numbers
{x : x² – 2 = 0 and x is rational}
{x : x is a natural number, x < 8 and simultaneously x > 12}
{x : x is a point common to any two parallel lines}
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
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%?
Miscellaneous · Easy