Answer:
210
Step-by-step explanation:
This is the problem of combination.
Number of ways of choosing x thing out n different thing is given by
[tex]{n \choose x} = n!/x!(n-x)![/tex]
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The number of bridesmaids = 10
number of bridesmaids, bride can choose = 4
Thus, Number of ways of choosing 4 bridesmaids thing out 10 bridesmaids is given by
[tex]{10 \choose 4} = 10!/4!(10-4)! = 10!/4!6!\\=> 10*9*8*7*6!/4*3*2*1 *6! = 5*3*2*7 = 210[/tex]
Thus, in 210 ways can she choose 4 bridesmaids.
