The sum of the first five terms and the sum of the first ten terms of an AP are same. Which one of the following is the correct statement?
The first term must be negative
The common difference must be negative
Either the first term or the common difference is negative but not both
Both the first term and the common difference are negative
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