Question

A combination lock has 5 different numbers. If each number can only be used ONCE, how many different combinations are possible?

could you please help me

Answer 1

how many ways are there to pick the first number?

Answer 2

9 i guess

Answer 3

dont guess, read the information; if i set 5 things in front of you; how many ways can you pick just one of them?

Answer 4

you have 5 boys asking you to go to the prom; how many ways can you pick a date?

Answer 5

5

Answer 6

good, after you pick the first number, how many ways are left to pick the next number?

Answer 7

4

Answer 8

and it follows this pattern till you got to 1

54321, multiply them all together

Answer 9

ok

Answer 10

5*4*3*2*1 = ??

Answer 11

120

Answer 12

than thats our solution :) good luck

Answer 13

thank you