Questions

From Worst to Best

41 P6.PC.TL.16010103

Level 3
Some adult passengers are on a coach. If 25 tourists alight from the coach, the percentage of locals will increase from 15% to 40%. How many passengers are there in the coach?

3 m

Video Attempt

42 P6.PC.TL.16010102

Level 3
In a box, there are some mangosteens and lemons. If 80 more lemons are put into the box, the percentage of mangosteens will decrease from 70% to 30%. How many mangosteens are there in the box?

3 m

Video Attempt

Percent change to Percent to units Percent of different bases Unchanged quantity Units table

43 P6.PC.TL.16010101

Level 3
A store owner had 505 kg of fresh honeydews. The honeydews contained 60% water when fresh. One week later, there was only 50% water left in the honeydews. What was the mass of the honeydews one week later?

3 m

Attempt

Percent change to Percent to units Percent of different bases Mass Unchanged quantity Units table

44 P5.FR.JM.17083021

Level 2
The figure shows some identical beads. How many unshaded beads must be removed so that ¹₃ of the figure is unshaded?

2 m

Attempt

Fraction of a set Fraction to units Unchanged quantity Units table

45 P6.PC.TL.16010146

Level 3
Wendy has a bag containing some violet and blue lollipops. If she adds in 15 violet lollipops, 25% of the lollipops in the bag are blue. If she adds in another 25 blue lollipops, 40% of the lollipops in the bag are blue. How many violet lollipops are in the bag?

3 m

Video Attempt

Percent to units Percent of different bases Unchanged quantity Units table

46 P5.ST.JC.18121154

Level 3
Adam has 150 blue stickers and red stickers.
60% of them are blue stickers and the rest are red stickers.
When Adam buys more blue stickers,
70% of the stickers are blue stickers.
How many stickers does Adam buy?

4 m

Attempt

Percent of a set Percent to units Unchanged quantity Units table

47 P5.RD.NK.22122908

Level 3
Pierre had $77.70 more than Henry. After Henry had spent ²₃ of his money, Pierre had $114.50 more than Henry. How much money did Pierre have at first?

4 m

Attempt

Fraction to units Money More than or less than Unchanged quantity Units equations Units table

48 P5.RD.JM.17083237

Level 3
Jamie had 126 pens. ²₃ of them were blue pens and the rest were red pens. After she had given away some blue pens, the ratio of the number of blue pens to the number of red pens became 4 : 3. How many blue pens did she give away?

4 m

Attempt

Fraction of a set Fraction to units Ratio to units Unchanged quantity Units table

49 P5.ST.JC.18121155

Level 3
Adam has 200 blue stickers and red stickers.
70% of them are blue stickers and the rest are red stickers.
When Adam gives away some blue stickers,
60% of the remaining stickers are blue stickers.
How many stickers does Adam give away?

4 m

Attempt

Percent of a set Percent to units Unchanged quantity Units table

50 P6.RD.TL.16010198

Level 3
Two hours ago, a stallholder started his day with some durians and apples in the ratio of 5 : 2. There were 100 apples. Some of the durians were bought by Mrs Olivia. As a result, the number of durians became ³₅ of the apples.