Questions

From Worst to Best

76 P6.PC.TL.16010129

Level 3
Ken has 30% more stamps than Vincent. Tim has 80% the number of stamps Ken has.

What is the ratio of the number of Vincent's stamps to the number of Tim's stamps?
If the total number of stamps of Ken's and Tim's is 150 more than Vincent's, how many stamps does Ken have?

4 m

Attempt

77 P6.RD.TL.16010142

Level 3
A bag had some violet erasers and yellow erasers in the ratio of 3 : 1. Queenie removed 35 violet erasers and put another 15 yellow erasers into the bag. There is now 50% as many violet erasers as yellow erasers in the bag. How many violet erasers were in the bag at first?

4 m

Attempt

Ratio to units Percent to units All change Units equations Units table Units & parts Elimination

78 P6.RD.JC.16010121

Level 3
³₄ of Eva's money was equal to ¹₂ of Anna's money at first. After Eva spent $1.70 and Anna spent $0.70, Eva had ³₅ as much money as Anna.

How much did Anna have at first? Express the answer(s) in 2 decimal places.
How much did Eva have in the end? Express the answer(s) in 2 decimal places.

4 m

Attempt

D Round off Ratio to units Percent to units Common numerator All change Units table Units & parts Substitution

79 P6.PC.JC.19072701

Level 3 PSLE
There are some stickers in albums A and B. 50% of the stickers in album A and 20% of the stickers in album B are round stickers. There is an equal number of square stickers in both albums. If there are 51 more round stickers in album A than in album B, how many stickers are there in both albums altogether?

4 m

Video Attempt

Percent to units More than or less than Equal stage Remainder concept Units table

80 P6.PC.TL.16010143

Level 3
The auditorium had 1050 seats. There were 25% fewer $40-seats than $5-seats. 50% of the $5-seats and some $40-seats were sold. A total of $16180 was collected. How many seats were unsold?

4 m

Video Attempt