Questions

From Worst to Best

96 P5.RA.JM.17083161

Level 2
The sides of a triangle are in the ratio 5 : 2 : 3. The length of the longest side is 20 cm. Find the length of the shortest side of the triangle.

2 m

Attempt

97 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

98 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

99 P5.RA.JM.17083136

Level 2
The ratio of three sides of a triangle is 4 : 5 : 3. If the perimeter of the triangle is 60 cm, how long is the longest side of the triangle?

2 m

Attempt

Ratio to units Area Perimeter Units method

100 P5.PA.JM.17083155

Level 3
How many shaded triangles will there be in Pattern 25?