171 P5.WN.JC.17083163
Level 2
10 poles are placed at equal distance apart on a straight line. The distance between the first and last pole is 396 m. What is the distance between the third and eighth pole?
2 m
Length Intervals Units method
172 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.
  1. How many stickers are there at first?
  2. How many stickers are there in the end?
3 m
Percent of a set Percent change by Percent of different bases All change Units method
173 P5.VO.NK.23022702
Level 3
Tank A was 15 filled with water. After 15000 cm3 of water was added to Tank A, it became 710 full.
  1. Find the volume of Tank A in litres.
  2. Find the volume of water in Tank A in the end. Give your answer in litres.
3 m
Filling tank Fraction of a whole F Addition & subtraction Unit conversion Units method
174 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.
  1. How many stickers are there at first?
  2. How many stickers are there in the end?
3 m
Percent of a set Percent change by Percent of different bases All change Units method
175 P5.WN.JC.17083165
Level 2
6 similar tables with a length of 50 cm each, are placed from one end to the other end of a corridor at an equal distance apart, as shown in the figure. The total length of the walkway is 900 cm. What is the spacing between each table?
2 m
Length Intervals Units method
176 P5.ST.JC.18121160
Level 3
If Adam's income is increased by 50% and
Bryan's amount is decreased by 30%,
both will get $2100 each.
  1. How much is Adam's income?
  2. How much is Bryan's income?
  3. What is the difference between Adam's income and Bryan's income?
3 m
Percent of a set Percent change by Percent of different bases Equal stage after All change Units method
177 P5.ST.JC.18121161
Level 3
Adam spends $300 of his income and saves the rest.
When he increases his spending by 10%, his savings decreased by 30%
  1. How much is Adam's savings at first?
  2. How much is Adam's savings in the end?
  3. How much is Adam's income?
3 m
Percent change by Percent of different bases Units method
178 P5.ST.JC.19021401
Level 3
If Adam's income increases 10% from $300 and then increases by another 10%, what is Adam's latest income?
3 m
Percent change by Percent of different bases Units method
179 P5.ST.JC.19021402
Level 3
If Adam's income decreases 10% from $330 and then decreases by another 10%, what is the new income?
3 m
Percent change by Percent of different bases Units method
180 P5.ST.JC.18121162
Level 3
If Adam's income increases 10% from $300 and then decreases by another 10%, what is Adam's latest income?
3 m
Percent change by Percent of different bases Units method

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