Questions

From Worst to Best

156 P6.FR.JC.19082905

Level 3
Bryan had some stickers. He gave ¹₅ of his stickers to John and bought 4 new stickers. After that, he gave ¹₃ of his remaining stickers to his brother and bought another 7 new stickers. In the end, Bryan had 55 stickers.

How many stickers did Bryan give to his brother?
How many stickers did Bryan have at first?

4 m

Video Attempt

157 P6.AP.TL.17090776

Level 3
Figure 1 shows a rectangle EFGH. It is folded along EG to form Figure 2. The area of Figure 2 is ⁵₈ of the area of Figure 1. The area of the shaded part in Figure 2 is 36 cm². Find the area of rectangle EFGH.

3 m

Video Attempt

Rectangle Triangle Overlapping area Folded figure Fraction to units Units method

158 P6.AP.TL.17090814

Level 3
The figure is made up of two identical squares, ABCD and WXYZ. The area of each square is 100 cm². Point A is the centre of Square WXYZ. Find the unshaded area.

3 m

Attempt

Square Cut & paste Fraction of a whole Units method

159 P6.SP.JC.19010101

Level 3
If Bill and Henry paint a house, they take 24 days to finish painting. If Kenny and Bill paint the same house, they take 8 days to finish painting. If Henry and Mark paint the same house, they take 12 days to finish painting. How many days do Kenny and Mark take to paint the house if they work together?

4 m

Video Attempt

Rate more than 1 object Duration LCM Units method Units & parts & boxes Substitution

160 P6.SP.JC.17053169

Level 3
The figure shows 2 completely filled tanks being emptied of the water from 2 different taps. The difference in height between Tank X and Tank Y is 5 cm. The taps at Tank X and Tank Y were turned on at 0700 and 0830. respectively, until both were completely empty. At 1100, the water level in both tanks was the same. At 1230, Tank Y was completely empty and Tank X was only completely empty at 1300. If the rate of the flow of water from each tap was constant throughout, what was the height of Tank Y?