PSLE Maths Series - EP 17 Speed

Question:
At 12 noon, Thomas and Sam started jogging from the same place but in the opposite direction. After 4 hours, they were 74km away. Thomas’s average jogging speed was 5.5km/h slower than Sam.
What was Sam’s average jogging speed? If at 4pm, Sam had just travelled ¼ of the circular track, what time would they meet?

‘PSLE Maths Series’
This is the first series in ‘ABCD’. In this series, we will cover some of the hard problem ­sums that students might have difficulties in solving. This week’s question will be contain speed concept.

Every week, we will try to upload be a video that will cover 1 maths question and also provide 2 additional practise questions with similar concept. Additional video(s) may be uploaded to cover another question in the worksheet if possible.

We will greatly appreciate if credits are given whenever our practice questions are used. We welcome students to email us any challenging questions that they had encountered in their studying, regardless is it via the comment section below, or via email and Instagram. For a faster processing process, please do provide us with the final answer. Please note that not all submitted questions will be featured.

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