Which of the following determinants have value zero? 1. | 4 1 1 | | 7 9 7 | | 2 9 5 | 2. | 1 a b+c | | 1 b c+a | | 1 c a+b | 3. | 0 c b | | -c 0 a | | -b -a 0 | Select the correct answer using the code given below.

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