Question

a group of 100 students were waiting for a train at the train railway station .Of those students,20 were from year 7, 29 were from year 9, 17 from year 10 and the rest were seniors. write the ratio of:
a) year 7 students to year 9 students
b) year 10 to senior students
c) year 9 student to the total number of year 10 and senior students

Answer 1

somebody please answer

Answer 2

a) 20/29
b) 17/44
c) 29/61