Questions

From Worst to Best

36 P5.RD.JM.17083245

Level 3
At the ferry transit terminal, 62.5% of the passengers were male and the rest were female. After 81 female passengers entered the terminal, the percentage of the number of female passengers became 60%. Find the number of female passengers at the terminal at first.

4 m

Attempt

37 P5.RD.JM.17083247

Level 3
²₃ of Sean's savings comprised of 20-cent coins and 50-cent coins. Sean used some 20-cent coins to purchase a toy. The number of 50-cent coins left was 50% more than the number of 20-cent coins left. Given that Sean had 100 more 50-cent coins than 20-cent coins left in the end, find the amount of money Sean spent on the toy.

4 m

Attempt

Fraction of a whole Fraction to units Percent of a set Percent to units Money More than or less than Unchanged quantity Units table

38 P5.ST.JC.18121157

Level 3
Adam has some blue stickers and red stickers.
The number of blue stickers is increased by 20% to 60.
The number of red stickers is increased by 30% to 65.

How many stickers are there at first?
How many stickers are there in the end?

3 m

Attempt

Percent of a set Percent change by Percent of different bases All change Units method

39 P5.ST.JC.18121158

Level 3
Adam has some blue stickers and red stickers.
The number of blue stickers is decreased by 20% to 160.
The number of red stickers is decreased by 30% to 70.

How many stickers are there at first?
How many stickers are there in the end?

3 m

Attempt

Percent of a set Percent change by Percent of different bases All change Units method

40 P5.ST.JC.18121159

Level 3
Adam has some blue stickers and red stickers.
The number of blue stickers is increased by 20% to 60.
The number of red stickers is decreased by 30% to 70.