Question

the number of ways of selecting 15 teams from 15men and 15 women, such that each team consists of a man and a women is:

Answer 1

first of all check how many members will be in each team

Answer 2

each team will have 2 members .

Answer 3

one team two members

Answer 4

while selecting first team u will have 15 men and 15 women .

Answer 5

so 1st team any one from 15 men and women

Answer 6

when u will select the second team u will have 13 members .and so on

Answer 7

15*15+14*14+13*13+.......+1*1
right?

Answer 8

1240 is the ans ,right?

Answer 9

nope thats wrong i suppose
1240 is correct i think

Answer 10

@Haseeb96 pls check

Answer 11

yes that makes sense 1240

Answer 12

sorry
i was wrong
the correct answer is 1280 .

Answer 13

*1240

Answer 14

i m 100% sure it is correct

Answer 15

First start with the full sample space.

S = { m1,m2,m3,m4, m5, m6,m7,m8,m9, m10, m11,m12,m13,m14, m15,
w1,w2,w3,w4, w5, w6,w7,w8,w9,w10, w11,w12,w13,w14, w15 }

For the first team you have 15 men to choose from and 15 women to choose from,
so there is 15*15 ways to produce first team.

Now you have 14 men and 14 women left to choose from for next team.
There are 14*14 ways to produce second team.

keep doing this until you have 1 man and 1 woman left . that makes 1*1 team

Answer 16

okay thank you :)

Answer 17

@rvc
did u get it ?

Answer 18

yes
thank you !

Answer 19

this kind of question comes in entry test.