Thief spotted at a distance, both start together: distance the policeman runs to catch him

The same question, asked 3 times: 25 Jul 2023 S1*, 26 Jul 2023 S1*, 26 Jul 2023 S2. Every wording below, oldest first.

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Question 1
25 Jul 2023 S1
55 $A policeman starts chasing a thief when he was already 600 m ahead. If the policeman is running at a speed of 9 km/h and the thief at 8 km/h, then the thief would be caught at a distance of:$
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Question 2
26 Jul 2023 S1
60 $A policeman saw a thief at a distance of 400 m. The thief started running at a speed of 10 km/h and the policeman chased him at a speed of 12 km/h in the same direction. At what distance from the starting point will the policeman catch the thief?$
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Question 3
26 Jul 2023 S2
60 $A policeman spots a thief at a distance of 360 m. Both the policeman and the thief simultaneously start running, with the former chasing the latter. While the thief runs at the speed of 8 km/h, the policeman runs at 9.2 km/h. How many metres will the policeman have to run before he catches up with the thief?$
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Question 1