In a row of 40 children, A is 13th from the left end and B is 9th from the right end. How many children are there between A and C if C is fourth to the left of B?

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1. **Step 1: Determine C's position from the right end.**  
   B is 9th from the right, and C is fourth to the left of B. Therefore, C's position from the right is:  
   $$ 
   	ext{C's position from right} = 9 + 4 = 13.
   $$

2. **Step 2: Determine C's position from the left end.**  
   The total number of children in the row is 40. Hence, C's position from the left is:  
   $$ 
   	ext{C's position from left} = (40 - 	ext{C's position from right}) + 1 = (40 - 13) + 1 = 28.
   $$

3. **Step 3: Calculate the number of children between A and C.**  
   A is positioned at the 13th place from the left, and C is at the 28th place from the left. The number of children between them is:  
   $$ 
   	ext{Children between A and C} = (	ext{C's position from left} - 	ext{A's position from left}) - 1 = (28 - 13) - 1 = 14.
   $$

Thus, there are **14 children** between A and C.

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