IBPS SO Prelims Exam Model Paper 4

No. of members in gymnasium A in 1991 = 60
No. of members in gymnasium B in 1991 = 210
Total members in gymnasium A and B in 1991 = (210 + 60) = 270
No. of members in gymnasium A in 1994 = 70
No. of members in gymnasium B in 1994 = 150
Total members in gymnasium A and B = (150 + 70) = 220
∴ Required ratio is
⇒ Members in 1991 : Members in 1994 = 270 : 220 = 27 : 22