A square is inscribed in a right triangle with legs x and y and has common right angle with the triangle. The perimeter of the square is given by
2xy/(x + y)
4xy/(x + y)
2xy/√(x² + y²)
4xy/√(x² + y²)
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