How do I solve Question 42, Level 5 in Think Different?

I'm a bit stuck on Question 42, Level 5, which has the following number puzzle:

53 (3) 59
92 (4) 98
34 (2) 38
71 (?) 79

I know I need to solve for the question mark, but I'm not sure what the pattern is or even where to start. Does anyone know what to do?

think-different

Best Answer

Take the last digit of the numbers and divide the right number by the left one.

53 (3) 59 -> 3 9 -> 9 / 3 = 3  
92 (4) 98 -> 2 8 -> 8 / 2 = 4  
34 (2) 38 -> 4 8 -> 8 / 4 = 2  
71 (?) 79 -> 1 9 -> 9 / 1 = 9

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