(1) In how many ways can 4 boys and 3 girlsbeseated in a row of 7 chairs if boys and girls alternate ?(ii) In how many ways can 4 boys and 3 girls be seated in a row so that no two girls are together?(ii) In how many ways can 5 girls and 3 boys be seated in a row so that no two boys are together ?(N.C.E.R.Т.; H.PB. 2011)

(1) In how many ways can 4 boys and 3 girlsbeseated in a row of 7 chai

1.	(1) In how many ways can 4 boys and 3 girlsbeseated in a row of 7 chairs if boys and girls alternate ?(ii) In how many ways can 4 boys and 3 girls be seated in a row so that no two girls are together?(ii) In how many ways can 5 girls and 3 boys be seated in a row so that no two boys are together ?(N.C.E.R.Т.; H.PB. 2011)
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