Questions

From Worst to Best

51 P6.SP.TL.18012240

Level 3
Elsa and Jason started biking at 10.45 a.m. along an 8-km trail. Elsa took 24 minutes to reach the finishing point. Jason's speed was 15 km/h slower than Elsa's. At what time did Jason reach the finishing point?

3 m

Video Attempt

52 P6.SP.TL.18012241

Level 3
Cain and Lea started driving at 9.30 a.m. from City A and headed towards City B which was 312 km away. Cain took 4 hours to complete his journey. Lea's average speed was 2 km/h faster than Cain's. At what time did Lea arrive at City B?

3 m

Attempt

DST triangle Average speed Different speed Same starting point Same starting time Unit conversion Start end time More than or less than

53 P6.DA.TL.18011919

Level 3
The mass of 4 children, Mandy, Nellie, Peter and Richie were taken. Only 3 children can be weighed at one time. Mandy, Nellie and Peter weighed a total of 55 kg. Nellie, Peter and Richie weighed a total of 56 kg. Mandy, Peter and Richie weighed a total of 57 kg. Mandy, Nellie, and Richie weighed a total of 60 kg. What is the average mass of the 4 children?

3 m

Video Attempt

Average Mass W 4 operations Sets Mass Repeated identity Units & parts & boxes

54 P6.SP.JC.21022401

Level 3
A car is travelling from Town A to Town B. At 60 km/h, it will arrive four hours later than the scheduled time. At 70 km/h, it will arrive at two hours later than the scheduled time. What is the distance between Town A and Town B?

3 m

Attempt

DST triangle Different speed Same starting point Same starting time Same distance Duration Units equations

55 P6.SP.TL.18012242

Level 3
Wilson started travelling at 10 a.m. at a speed of 75 km/h towards a town. Timmy started travelling towards the town from the same place 3 hours later. When Wilson reached the town at 6 p.m., Timmy had another 180 km to travel. What was Timmy's average speed?

3 m

Attempt

DST triangle Average speed Same starting point Different starting time Duration

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