Question

plz solve the sum for me

Answer 1

Answer is-
a)1:2
b)2:3

Answer 2

given,


number of students= 30

number of students liking football = 6
number of students liking cricket = 12
number of students liking tennis= 30-(6+12) =12

ratio:
(a) 6/12 = 1/2
(b) 12/30 = 2/5


hope that will help you