Two people at two speeds, one takes t minutes longer: distance

The same question, asked 2 times: 24 Jul 2023 S2*, 27 Jul 2023 S1. Every wording below, oldest first.

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Question 1
24 Jul 2023 S2
68 $Two men walk from a place at speeds of 9 km/h and 12 km/h, respectively. The first man takes 20 minutes more than the second one to cover the journey. Find the distance of the journey.$
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Question 2
27 Jul 2023 S1
58 $Two motorists start together to travel to a certain destination, one at the speed of 4 km/h and the other at the speed of 6 km/h. Find the distance travelled by them (in km) if the motorist travelling at 4 km/h arrives half an hour after the other motorist.$
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Question 1