Grades 5-6 Video Solutions 2026-2026_5-6

Video Transcription

Video Summary

Cave tours are conducted in three-seater vehicles. The vehicles leave at two-minute intervals and the ride takes 10 minutes. The first group of three from a large group of 30 people started their tour at 1 p.m. At what time did the final group of three from the large group finish their tour? Okay, so if we imagine a timeline showing when our... Since there are 30 people in groups of three, there must have been 10 groups. And so we can see a timeline of when our 10 groups left. And here you might notice that there are actually nine two-minute intervals between the times that each group left. So our first group left at 1 p.m., our second group would have left at 1 p.m. So on until we have 2 times 9, which is 18 minutes after 1 p.m. So our 10th group must have left at 1 18. Since the tour takes 10 minutes, that means our 10th group must have come back 10 minutes later at 1 28 p.m.

Keywords

cave tours

three-seater vehicles

two-minute intervals

10-minute ride

group scheduling