Question

You own 5 pairs of jeans and want to take 2 of them on vacation. In how many ways can you choose 2 pairs of jeans? (1 point)

a. 10 ways
b. 15 ways
c. 4 ways
d. 20 ways

I think its D???

Answer 1

I believe it's a (10)

4 + 3 + 2 + 1 = 10

Answer 2

* 10, not a 10

Answer 3

it is five choose two
written as \(_5C_2\) or \(\binom{5}{2}\) and computed via
\[\binom{5}{2}=\frac{5\times 4}{2}=10\]

Answer 4

Thx @trogdortheburninator & @satellite73