Questions

From Worst to Best

1 P5.PC.JM.17083125

Level 3
A pool was 60% full with water. When 40% of the water was drained, 72 ℓ of water remained in the pool. How much water can the pool hold?

3 m

Attempt

2 P5.ST.JC.18121148

Level 3
Adam wants to buy a TV set.
The usual price of the TV set is $1000.
There is a storewide promotional discount of 20%.
As a privileged card member, he is entitled to another 10% discount of the discounted price.
How much does he pay for the TV set in all?

3 m

Attempt

Percent of a whole Discount Percent of different bases Units method

3 P5.ST.JC.18121152

Level 2
Adam wants to buy a TV set. The usual price of the TV set is $1000.
As a privileged card member, he is entitled to a discount of 10%.
He needs to pay a GST of 5%.

How much is the GST?
How much does he pay for the TV set in all?

3 m

Video Attempt

Percent of a whole Discount GST Percent of different bases

4 P5.ST.JC.18121153

Level 2
Adam has $1000 in his bank account.
The bank pays him an annual interest of 5%.
He does not deposit any more money.

What is the interest after a year?
How much will he have in his bank account after a year?

2 m

Attempt

Percent of a whole Interest Percent of different bases

5 P5.PC.JM.17083189

Level 3
The cost price of a shirt is 30% less than that of the jacket. A profit of 25% is made when the jacket is sold for $50. What is the cost price of the shirt?

3 m

Attempt

Percent to units Profit & loss Percent of different bases More than or less than Units method

6 P5.PC.JM.17083157

Level 2
The table shows the prices of a similar dress from two different malls.

Which mall sells the dress at a cheaper price? (A or B)
How much cheaper is the dress?

3 m

Attempt

Discount Percent of different bases Table More than or less than

7 P5.PC.JM.17083181

Level 3
Alicia bought one camera at 20% discount off its original price. She paid a total of $107 for it, which was inclusive of 7% GST on the discounted price. What was the original price of the camera?

3 m

Attempt

Discount GST Percent of different bases Table Units method

8 P5.RD.JM.17083261

Level 3
Annie had ²₃ as many stamps as Becky. The sum of the number of stamps Annie and Becky had was the same as the number of stamps that Callie had. After trading, Callie gave 20% of her stamps to Annie and received 25% of Becky's stamps. If Becky wanted to increase her number of stamps in the end by 25%, find the ratio of her number of stamps to the sum of Annie's and Callie's stamps in the end.

4 m

Attempt

Fraction to units Finding ratio Percent of a whole Percent change by Percent to units Percent of different bases Times as many Internal transfer

9 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

10 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.