If a 30day month starts on a Saturday, Sunday or Monday it will have five Monday, if not it will have 4 Monday. Probability is 3/7.
A library has an average of 510 visitors on Sunday and 240 on other day. What is the average number of visitors per day in a month of 30 days whose beginning with Monday?
A library has an average of 510 visitors on Sundays and 240 on other days. What is the average number of visitors per day in a month of 30 days beginning with a Sunday?
There are 5 switches in a board. In these 5 switches 1 is attached with the fan. A person has to start the fan in 2 attempts only. What will be the probability of success?
