Questions

From Best to Worst

31 P6.AG.JC.17080442

Level 2
The perimeter of an isosceles triangle is (6k + 21) cm. The longest side is (2k + 7) cm. Find the length of one of the equal sides.

2 m

Attempt

32 P6.AG.JC.17080439

Level 2
John used 3 rubber bands to form the sides of triangle ABC where AB = 8 cm, BC = x cm and AC = 2x cm. Bob stretches two of the elastic bands and enlarges triangle ABC. The sides BC and AC are stretched to 2 times its original length. What is the perimeter of the stretched triangle ABC?

2 m

Attempt

Algebra in 1 variable Algebra simplifying Length Area Perimeter Triangle Times as many

33 P6.SP.TL.18012204

Level 2
A subway train travelled 900 km from Station A to Station B at an average speed of 150 km/h. It then moved on to Station C which is 500 km away at an average speed of 120 km/h. Find the time taken for the whole journey. Express the answer as a mixed fraction in h.

2 m

Attempt

DST triangle Average speed Journey by parts Different speed Duration

34 P6.SP.TL.18012205

Level 2
A train travelled 900 km from City A to City B at an average speed of 150 km/h. It then travelled 500 km to City C at an average speed of 120 km/h. Find the time taken for the whole journey. Express the answer in h and min.

2 m

Attempt

DST triangle Average speed Journey by parts Different speed Duration

35 P6.SP.TL.18012206

Level 2
A race car travelled ²₅ of its journey at an average speed of 64 km/h. Find its average speed for the remaining 480 km if its average speed for the whole journey was 80 km/h.

2 m

Attempt

DST triangle Average speed Journey by parts Different speed Fraction of a whole Units method

36 P6.SP.TL.18012207

Level 2
An airplane flew 9000 km from Country X to Country Y at a speed of 450 km/h. It then covered 4900 km from Country Y to Country Z at a speed of 350 km/h. Find the time taken for the whole journey.

2 m

Attempt

DST triangle Average speed Journey by parts Different speed Duration

37 P6.SP.TL.18012213

Level 2
A lorry and a bus were travelling from town A to town B which were 720 km apart. The bus set off 2 ¹₂ h later than the lorry but arrived 1 ¹₂ h earlier. If the average speed of the lorry was 60 km/h, find the average speed of the bus.

2 m

Video Attempt

DST triangle Average speed Different speed Same starting point Duration

38 P6.AP.NK.21060406

Level 1 PSLE
In the figure, ABC and BCD are right-angled triangles. To find the area of Triangle ABD, identify,
(a) its height
(b) its base.

2 m

Attempt

Length Triangle

39 P6.SP.TL.18012211

Level 2
Vicky and Sue started driving from the same building but in opposite directions along a straight road. After driving for 2 hours, they were 260 km apart. Vicky's average speed was 60 km/h. What was Sue's average speed?

2 m

Attempt

DST triangle Average speed Same starting point Opposite direction

40 P6.AP.JC.22040801

Level 1 PSLE
Find the area of the shaded triangle.