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Let C, H and T represents number of people who likes Cricket, Hockey and Tennis respectively. The ratio of C : H : T is

53 : 54 : 61

Total number of player who play Cricket (C) = 9 + 12 + 15 + 17 = 53

Total number of player who play Hockey (H) = 6 + 12 + 15 + 21 = 54

Total number of player who play Tennis (T) = 8 + 17 + 15 + 21 = 61

Now, C : H : T = 53 : 54 : 61