Register
ten runners joine a race .in how many possible ways can they be arranged as first devond and third placers?
125k views
5 votes
ten runners joine a race .in how many possible ways can they be arranged as first devond and third placers?

User Franca
by
7.8k points

1 Answer

0 votes
10P3 -> 10!/7!

=720

OR

There are ten possible runners for first place, then nine for second place, and eight for third place, therefore:

10*9*8 = 720
User Sunghee Yun
by
8.2k points
← Prev Question Next Question →

Related questions

User JARH
asked May 7, 2022 96.8k views
Find the equation of the line joine points (2,2) and (-2,5). ​
JARH asked May 7, 2022
by JARH
8.3k points
1 answer
4 votes
96.8k views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Other Questions

How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!