Saturday

December 20, 2014

December 20, 2014

Posted by **matt** on Tuesday, July 15, 2008 at 3:30am.

- maths -
**drwls**, Tuesday, July 15, 2008 at 6:18am[100!/(2!*98!)]*[80!/(78!)(2!)]*20

= [(100*99)/2][(80*79)/2)]*2

= 31,284,000

**Answer this Question**

**Related Questions**

mathss - Can someone explain how to do this: There are 100 boys , 80 girls, and ...

math - there were 490 altogether in 2 groups. group A consited of only boys and ...

Math - Mrs.Smith's class has 12 girls and 8 boys. What percent of he class are ...

Math - If the ratio of girls to boys on the swim team is 2:3, which of these ...

Math - If the ratio of girls to boys on the track team is 5 to 6 which of these ...

math - In a group no. of boys is48/5, no of girls is 32/5 and no. of techer is 2...

psychology - Researchers have found that, during childhood: A) girls' gender ...

English Expression - A: How many boys and girls are there in the park? B: There ...

Math - A teacher is trying to pick 7 students to represent his class at an ...

Math - An all girl college began enrolling boys in 2005. By 2012 the ratio of ...