21 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
Percent to units Percent of different bases Unchanged quantity Units table
22 P6.RD.TL.16010171
Level 3
Three women, Mrs Zhang, Mrs Lin and Mrs Yap went on a shopping spree. 30% of Mrs Zhang's spending is equal to 15 of Mrs Lin's spending. Mrs Yap's spending is 40% more than Mrs Lin's. If Mrs Lin spends another $804, she will spend the same amount of money as Mrs Yap.
  1. Find the ratio of Mrs Zhang's spending to Mrs Lin's to Mrs Yap's.
  2. How much did Mrs Zhang spend?
4 m
Fraction to units Finding ratio R Simplest form Percent to units Percent of different bases More than or less than Equal stage after Repeated identity Common numerator Units table
23 P6.RD.JC.16010136
Level 3
Tank E contained 4 times as many guppies as Tank F. When 10% of the guppies in Tank E and 10% of the guppies in Tank F were transferred to Tank G, Tank G had 120 guppies, which was 20% more guppies than before. How many less guppies were there in Tank F than Tank E in the end?
4 m
Percent to units Percent of different bases More than or less than Times as many Branching Internal transfer Unchanged total All change Units table Decimal units
24 P6.PC.TL.16010129
Level 3
Ken has 30% more stamps than Vincent. Tim has 80% the number of stamps Ken has.
  1. What is the ratio of the number of Vincent's stamps to the number of Tim's stamps?
  2. 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
Percent to units Percent of different bases More than or less than Repeated identity Units table
25 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
Percent to units Percent of different bases Money More than and less than Number x value All change Units table

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