question_answer

Direction: The table given below shows the distribution of students of three classes according to the sport they like. Some values are hidden intentionally in the table. Study the table and select the most appropriate answer.
Class	Class IX	Class X	Class. XI	Total
Sport
Cricket	32		35	96
Hockey	15%	20	6%
Volleyball		20%		95
Football	19
Tennis	25	14	24	63
Total		25%	150	360

If 18 more students took admission in Class X and all of them like Tennis then what will be the ratio of the number of students of Class X who like Tennis to the number of students of Class IX who like Hockey?

A)  16:7                            

B)  16:9        

C)  9:1                              

D)  4:3         

E)  3:4

Correct Answer: B

Solution :

Sport	Class IX	Class X	Class XI	Total
Cricket	32	29	35	96
Hockey	15%= 18	20	6% = 9	47
Volleyball	26	18	51	95
Football	19	9	31	59
Tennis	25	14	24	63
Total	120	25% = 90	150	360

The given table can be completed by adding up all the totals and calculating the required percentages. The final complete table is shown above.  Number of students' in Class X who like Tennis after the addition of 18 new students =14+18=32 Number of students in Class IX who like Hockey = 18 Reqd ratio \[=\frac{32}{18}=16:9\]