Question
In a group of 65 people,40 like cricket,10 like both cricket and tennis.How many like tennis only and not cricket?How many like tennis?
Answers
Reiny
Make a Venn diagram, and enter your data.
Let the number of people who like only tennis be x
x + 10 + 30 = 65
x = 25
so number who like tennis = 10+25 = 35
check:
N(C or T) = N(C) + N(T) - N(C and T)
LS = 65
RS = 40 + 35 - 10
= 65
= LS
All is good!
Let the number of people who like only tennis be x
x + 10 + 30 = 65
x = 25
so number who like tennis = 10+25 = 35
check:
N(C or T) = N(C) + N(T) - N(C and T)
LS = 65
RS = 40 + 35 - 10
= 65
= LS
All is good!
Andy xerma
don't know the answer