Goes and returns at two speeds in a total time: distance

This type of question, asked 2 times: 24 Sep 2025 S2, 26 Sep 2025 S2. All 2 questions below, oldest first.

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Question 1
24 Sep 2025 S2
53 $Dhiraj goes to his school from his house at a speed of 3.8 km/hr and returns at 2.6 km/ hr. If he takes 5 hours going and coming, the distance between his house and school is:$
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Question 2
26 Sep 2025 S2
53 $Sahil travelled a certain distance by bike at the rate of 25 kmph. And walked back at the rate of 4 kmph. If the whole journey took 5 hours 48 minutes, what was the distance?$
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Question 1