321 P6.SP.TL.18012249
Level 3
Sam and Ian have a bicycle race. Sam cycles at a speed of 12 km/h. Ian cycles at a speed of 16 km/h. If Ian lets Sam start 40 min before him, how long will Ian take to catch up with Sam?
3 m
DST triangle Different speed Same starting point Different starting time Overtaking Unit conversion Duration
322 P5.VO.NK.23012644
Level 3
A tank with a square base of 10 cm was 13 filled with water After another 4500 cm3 of water was poured into the tank, it became 34 full.
  1. Find the capacity of the tank in litres.
  2. Find the final height of the water in the tank.
3 m
Base area x height Filling tank Unit conversion Fraction of a whole F Addition & subtraction Units method
323 P5.DE.JC.17083217
Level 2 PSLE
Joseph has thrice as many 20-cent coins as 50-cent coins. If he has $66 in total, how many 20-cent coins does Joseph have?
3 m
Unit conversion Times as many Money Number x value Units table Decimal units
324 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
325 P5.VO.NK.23041209
Level 2
A rectangular tank measuring in 40 cm by 15 cm by 20 cm is 25 filled with water. How much water is needed to fill the tank to 50% of the capacity? Give your answer in litres.
3 m
Volume of cuboid Filling tank Fraction of a whole F Addition & subtraction Percent of a whole Unit conversion
326 P5.DA.NK.23012618
Level 3
A laundromat hired a delivery service to move its machines to a new location. The mass of all its inventory 37800 kg.

The laundromat hired the delivery service from 5 p.m. to 7.20 p.m. Find the total amount that was paid for the delivery service.
3 m
Table Tiered rate W Remainder Mass Money am pm Duration Unit conversion Sets
327 P6.SP.TL.18012265
Level 3
Joe took 12 min to cycle from his home to a park for his morning exercise. After the exercise, he took 60 min to walk the same route home. The difference between his cycling and walking speed was 40 km/h. How far was Joe's home from the park?
3 m
DST triangle Different speed Distance apart Inverse ratio Unit conversion Units method
328 P4.PA.JM.17092435
Level 3
A baby snake which is 4 cm long grows longer by 2 cm on the first day, 4 cm on the second day, 6 cm on the third day, 8 cm on the fourth day and so on. If it continues to grow at this rate, how many days will it take to grow to a length of 0.6 m?
4 m
Sum of even consecutive Length Unit conversion Table Model Comparison
329 P5.VO.NK.23022703
Level 3
Tank A is a cubical tank of side 8 cm. It is 34 filled with water. The water is then poured into Tank B measuring 10 cm by 12 cm by 15 cm.
  1. Find the volume of water in Tank A at first.
  2. How much more water is needed to fill Tank B to the brim? Give your answer in litres.
3 m
Volume of cube Volume transfer Fraction of a whole Unit conversion
330 P5.SP.NK.23050640
Level 3
At first, 13 of Container B was filled with water and Container C was empty. Then, both taps were turned on at the same time and water from both taps flowed at the same rate of 2.2 litres per minute. Both taps were turned off immediately when Container B was filled to the brim.
  1. How much water was there in Container B at first?
  2. How long did it take for the water from the tap to fill Container B to the brim?
  3. What fraction of Container C was filled with water in the end? Give your answer in the simplest form.
4 m
Rate more than 1 object Duration Unit conversion Volume of cuboid Filling tank Fraction of a whole F Addition & subtraction

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