Question 390478
2 girls, 7 boys , total 9 persons

No. of ways to choose 4 persons from 9 = 9C4


no. of ways to choose 4 persons from 7 boys = 7C4  ( no girls)



according to question, there must be at least 1 girl, so we will reduce number of ways in which no girls in team...


total no. of ways in which there must be at least 1 girl = 9C4 -7C4

= 126 - 35


=91


if any problem related to the concept, u r welcome to contact ......