Friday

January 30, 2015

January 30, 2015

Posted by **Samir** on Monday, January 21, 2008 at 8:48pm.

2:How many even five digit numbers can be formed using only the numbers through 1 and 7?

- Data managment math -
**Damon**, Monday, January 21, 2008 at 9:19pmfirst the driver in the driver seat

4 possible

that leaves three with the other three to choose the other six seats. How many arrangements of those six people?

the first one has 6 choices, the second 5 choices .....

6*5*4 etc or 6!

so 4 * 6!

even ends in 2 , 4 , 6

so the fifth digit must be 2, 4, or 6

the fourth must be 1, 2 , 3 , 4 , 5 ,6 , 7 seven choices

the third - 7 choices

the second -- 7 choices

he first - 7 choices

so

2 * 7^4

- Typo -
**Damon**, Monday, January 21, 2008 at 9:28pm3*7^4

**Answer this Question**

**Related Questions**

English expression - How many are there in Mi-na's family? There are five in her...

math - a driver comes to pick up members of your family (20 members) for a ...

Basic Algebra - $5130 is to be divided equally among the members of a family ...

Basic Algebra - $5130 is to be divided equally among the members of a family ...

English expression - 1. How many are there in your family? 2. How many people ...

Math - f you have a bill of 1.439 pesos how can you equal each person in 3 ...

math - if you have a bill of 1.346 pesos how can you equal each person in 5 ...

science - Never found in nature uncombined? Alkali metals Alkaline Earth Metals ...

physical science - do not noramlly react with other elements? Alkali metals ...

Physical science - Never found in nature uncombined? Alkali metals Alkaline ...