Bushra has 4 paintings in the store. She is going to bring 2 of them and hang 1 in her den and 1 in her bedroom. In how many ways can she choose the paintings in each room?

In an election where there are only two candidates one of them got 60% of the total votes and won with the majority of 500 votes. How many total votes were cast?

In a variety program 500 people are participating. All performed in such a way that 89 people performed before him and Saeed performed in such a way that 100 people performed after hi. How many people performed between Saeed and Ali?