Consider the following statements: 1.A function f : ℤ → ℤ, defined by f(x) = x + 1, is one-one as well as onto. 2.A function f : ℕ → ℕ, defined by f(x) = x + 1, is one-one but not onto. Which of the above statements is/are correct?

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