A tap can fill a tub in 10 hours. After 5 hours, a leak was discovered. It took 7 more hours to fill. Time taken by the outlet to empty the full tub is
35 hours
25 hours
20 hours
17 hours
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