Question

In the class there are 29 students. 17 like science, 15 like French, 8 like both. Others like math. How many like math?

Answer 1

my solution

n(U)=29

n(S)=17

n(F)=15

n(f intersection s)=8

now

no of maths like

29=17+15+x+8

x=5

hence 5 student likes maths