At an international conference 100 delegates spoke English 40 spoke French and 20 spoke both English and French How many

no. of delegates spoke only english=80
no. of delegates spoke only french=20
no. of delegates spoke both=20
therefore no. of delegates spoke at least one of the language=(80+20+20)=120
10 years agoHelpfull: Yes(5) No(2)
NUMBER of delegates spoke BOTH=20
NUMBER of delegates spoke only ENGLISH=100-20=80
NUMBER of delegates spoke only FRENCH=40-20=20
THEREFORE,
120 ( 80+20+20 ) Delegates could speak at least one of these two languages..
10 years agoHelpfull: Yes(5) No(0)
atlest=100+40-20

120
10 years agoHelpfull: Yes(3) No(1)
only E=80
only F=20
both=20
120
10 years agoHelpfull: Yes(1) No(1)
n(a)+n(b)-n(a and b)=n(a or b)
100+40-20
=120
10 years agoHelpfull: Yes(1) No(0)
120=ans=100+40-20=120
10 years agoHelpfull: Yes(1) No(0)
(a uinon b) = a + b -(a intersection b)
(a uinon b) = 100 + 40 - (20)
(a uinon b) = 120
10 years agoHelpfull: Yes(0) No(0)
) here English=100 French=40 and Both=20…if that Both speakers are in 100+40…. Then the answer will be 100+40-20=120.
Note:If that both speakers are separate speakers…then the answer will be 100+40=140
10 years agoHelpfull: Yes(0) No(0)
ans= 120 delegates
9 years agoHelpfull: Yes(0) No(0)
120 delegates........By Venn Diagrams
8 years agoHelpfull: Yes(0) No(0)
P(E or F)=P(E)+P(F)-(E and F)
=100+40-20
=120
5 years agoHelpfull: Yes(0) No(0)

At an international conference, 100 delegates spoke English, 40 spoke French, and 20 spoke both English and French. How many delegates could speak at least one of these two languages?