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Solution


Q.

A coaching institute of Mathematics conducts classes in two batches I and II and fees for rich and poor children are different. In batch I, there are 20 poor and 5 rich children, whereas in batch II, there are 5 poor and 25 rich children. The total monthly collection of fees from batch I is Rs9000 and from batch II is Rs26,000. Assume that each poor child pays Rs x per month and each rich child pays Rs y per month.

Based on the above information, answer the following questions:

 

(iii) If there are 10 poor and 20 rich children in batch II, what is the total monthly collection of fees from batch II
1 22,000  
2 20,000  
3 23,000  
4 24,000  

Ans.

(1)

(iii) Monthly collection of batch II for 10 poor and 20 rich children

     = 10 × 200 + 20 × 1000

     = ?(2000 + 20000) = Rs 22,000