IDNStudy.com, ang iyong gabay para sa maaasahan at mabilis na mga sagot. Ang aming platform ay nagbibigay ng mga maaasahang sagot upang matulungan kang gumawa ng matalinong desisyon nang mabilis at madali.

There are 20 girls in a grade 7 class who joined the dance troupe or glee club or both. 9 girls joined the dance troupe while 14 girls joined the glee
club. How many girls joined both?


Sagot :

There were 3 girls in the Grade 7 class who joined both of the clubs.

Explanation:
Total number of girls : 20
Girls who joined club A : 9
Girls who joined club B : 14
Total number of recruited girls : 23

17 girls joined a single club
3 girls joined both clubs.
 = 17+(3)2=23