Question

in a group of children, one fifth play football, one-fourth play basketball, two-fifth play cricket and the remaining 30play other games find total number of children in the group

Answer 1

children who play cricket,football and basket ball =1/5+1/4+2/5 =17/20
so children who play other games =1 -17/20 =3/20 = 30
1/20 =10

so there are 200 children