Question

A problem is given below. Instead of trying to solve that problem, state a simpler problem and solve it instead.
Ten people are being honored for their work in reducing pollution. In how many ways can we line up these people for a picture?

A. In how many ways can 15 people be lined up for a picture?
B. In how many ways can 4 people be selected from a group of ten people?
C. In how many ways can 4 people be lined up for a picture?
D. In how many ways can 10 people be selected from a group of 15 people?

Is it A,B,C,D?

What is the solution to the simpler problem?

Answer 1

i would say B

Answer 2

that's what i thought at first. then i thought c.

Answer 3

i think it is b because it says choose out of the 10 people and the original question said there was 10 people

Answer 4

yeah, true. The solution would be 8 ways right?

Answer 5

oh nvm thats wrong. thas the answer for c

Answer 6

whats wrong with B??

Answer 7

i need to figure out the solution to B.