How many parallelograms can be formed from a set of 4 parallel lines interesting another set of 3 parallel lines?
How many different committees of 5 can be formed from 6 men and 4 women, if each committee consists of 3 men and 2 women?
There are 13 cricket players, out of which 4 are bowlers. In how many ways can team of 11 be selected from them so as to include at least 3 bowlers?
There are 12 points in a plane, out of which 3 points are collinear. How many straight lines can be drawn by joining any two of them?
Three persons enter a railway compartment having 5 vacant seats. In how many ways can they seat themselves?