There is 25% chance that it rains on any particular day. What is the probability that there is at least one rainy day within a period of 7 days?
1 - (3/4)^7
(1/4)^7
(3/4)^7
1 - (4/3)^7
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