Q26. 
A club consists of members whose ages are in A.P. The common difference being 3 months. If the youngest member of the club is just 7 years old and the sum of the ages of all the members is 250, then number of members in the club are: 
A.  18 

B.  20 

C.  25 

D.  24 
Q27. 
21 pencils and 29 pens cost Rs 79. But if the number of pencils and pens were interchanged, the cost would have reduced by Rs 8. Find the cost of each pen. 
A.  Re 1 

B.  Re 2 

C.  Re 3 

D.  Re 4 
Q28. 
A person buys 18 local tickets for Rs 110. Each first class ticket costs Rs 10 and each second class ticket costs Rs 3. What will another lot of 18 tickets in which the numbers of first class and second class tickets are interchanged cost? 
A.  112 

B.  118 

C.  121 

D.  124 
Q29. 
Students of a class are made to stand in rows. If 4 students are extra in each row, there would be 2 rows less. If 4 students are less in each row, there would be 4 more rows. The number of students in the class is: 
A.  90 

B.  94 

C.  92 

D.  96 
Q30. 
Large, medium and small ships are used to bring water. 4 large ships carry as much water as 7 small ships. 3 medium ships carry the same amount of water as 2 large ships and 1 small ship. 15 large, 7 medium and 14 small ships, each made 36 journey and brought a certain quantity of water. In how many journeys would 12 large, 14 medium and 21 small ships bring the same quantity? 
A.  32 

B.  29 

C.  49 

D.  25 