Hi,

10C2 = 45 ways =  =  

RELATED QUESTIONS

Determine the number of permutations (arrangements) possible of 6 things taken 5 at a... (answered by ewatrrr,stanbon)

Determine the number of permutations 20 things, taken four(4) at a... (answered by ikleyn)

Determine the number of combinations of 9 things taken 7 at a... (answered by stanbon)

Determine the number of combinations of 15 things taken 5 at a... (answered by brucewill)

Determine the number of combinations of 8 things taken 1 at a... (answered by Fombitz)

Determine the number of combinations of  20 things, taken four(4) at a... (answered by ikleyn,Edwin McCravy)

Find both the number of combinations and the numbers of permutations of 10 objects taken... (answered by richard1234)

Find the number of permutations of the numbers 1,2,3 and 4 taken two at a... (answered by MathLover1,ikleyn)

Find the number of combinations (subsets) of 9 things taken 5 at a... (answered by ewatrrr)