Level 1 PSLE
Water leaks from a tap at a rate of 3 ml per second. At this rate, how much water will leak from the tap in 1 minute?
1 m
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Level 1
A copier prints 24k pieces of paper in 3 minutes. How many pieces of paper are printed by the copier in 11 minutes?
1 m
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Level 1 PSLE
Water drips from a tank tap at 8 mℓ per second into an empty pail. How much water is collected in 2 hours? (Express the answer in ℓ.)
1 m
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Level 1 PSLE
A tank was filled with 55 litre of water at 07 00. Water flowed out of the tank from 07 00 to 11 00. The line graph shows the amount of water in the tank from 07 00 to 11 00.
During which one-hour period was the decrease in the volume of water the greatest?
Give your answer in number. (Eg 1)
(1) From 0700 to 0800
(2) From 0700 to 0900
(3) From 0900 to 1000
(4) From 1000 to 1100
Level 1 PSLE
A tank was filled with 55 litre of water at 07 00. Water flowed out of the tank from 07 00 to 11 00. The line graph shows the amount of water in the tank from 07 00 to 11 00.
During which one-hour period was the decrease in the volume of water the greatest?
Give your answer in number. (Eg 1)
(1) From 0700 to 0800
(2) From 0700 to 0900
(3) From 0900 to 1000
(4) From 1000 to 1100
Image in this question is not available.
Level 1 PSLE
A tank was filled with 48 litres of water at 06 00. Water flowed out of the tank from 06 00 to 11 00. The line graph shows the amount of water in the tank from 06 00 to 10 00. What was the average decrease in the volume of water in litres per hour from 06 00 to 10 00? (Give your answer in ℓ.)
Level 1 PSLE
A tank was filled with 48 litres of water at 06 00. Water flowed out of the tank from 06 00 to 11 00. The line graph shows the amount of water in the tank from 06 00 to 10 00. What was the average decrease in the volume of water in litres per hour from 06 00 to 10 00? (Give your answer in ℓ.)
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Level 1 PSLE
Water from a tap leaks at a rate of 35 mℓ per min. At this rate, how much water is leaked in 2 hours? Give your answer in ℓ.
2 m
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Level 2 PSLE
A machine started printing posters at 8.00 a.m. on Monday at the rate of 1000 posters per hour. After every 6 hours of printing, it was stopped for an hour. How many posters were printed by 10.00 a.m. the next day?
2 m
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Level 1 PSLE
The line graph shows the temperature of soup in a pot from 08 00 to 08 35. (Give your answers in °C.)
- What was the temperature of the soup at 08 25?
- What was the increase in temperature per minute over the first 5 minutes?
Level 1 PSLE
The line graph shows the temperature of soup in a pot from 08 00 to 08 35. (Give your answers in °C.)
- What was the temperature of the soup at 08 25?
- What was the increase in temperature per minute over the first 5 minutes?
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Level 2 PSLE
The graph shows the amount of water that flows from a tap. At this rate, how many litres will flow from the tap in 28 minutes?
Level 2 PSLE
The graph shows the amount of water that flows from a tap. At this rate, how many litres will flow from the tap in 28 minutes?
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Level 3
9 identical 4-cm cubes are placed in an empty rectangular tank of length 90 cm and width 25 cm. The tank is then filled with water from a tap flowing at a rate of 7 litres per minute. It takes 12 minutes to fill up 34 of the tank. What is the height of the tank? Correct the answer to 1 decimal place.
3 m
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Level 3
The figure shows a tank made up of 3 sections. Cuboid A with a square base of side 4 cm and height 30 cm. Cube B with a side of 12 cm. Cuboid C that is 60 cm by 20 cm by 40 cm. Water from a tap above flows down at a rate of 1.2 litres per minute while water is drained out from the bottom at a rate of 1 litre per minute. How long did it take to fill up the tank to a height of 66 cm from the base? Give the answer in minutes correct to nearest whole number.
Level 3
The figure shows a tank made up of 3 sections. Cuboid A with a square base of side 4 cm and height 30 cm. Cube B with a side of 12 cm. Cuboid C that is 60 cm by 20 cm by 40 cm. Water from a tap above flows down at a rate of 1.2 litres per minute while water is drained out from the bottom at a rate of 1 litre per minute. How long did it take to fill up the tank to a height of 66 cm from the base? Give the answer in minutes correct to nearest whole number.
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Level 3
The figure shows a rectangular tank measuring 55 cm by 22 cm by 24 cm. It was 13 filled with water at first. Dylan turned on a tap and let water flow into the tank at a rate of 1.36ℓ per minute. After 15 minutes, he turned off the tap. How much water had overflowed? (Express the answer in ℓ.)
Level 3
The figure shows a rectangular tank measuring 55 cm by 22 cm by 24 cm. It was 13 filled with water at first. Dylan turned on a tap and let water flow into the tank at a rate of 1.36ℓ per minute. After 15 minutes, he turned off the tap. How much water had overflowed? (Express the answer in ℓ.)
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Level 3
Shemy placed three empty tanks side by side. The smallest tank has a crack at its side and the base area of each tank is 16 cm2. After she turned on the tap for 64 minutes, the height of the water in the smallest tank became 6 cm although 0.5 mℓ of water is leaking out of the crack per minute. Find the rate of flow of water from the tap. Give the answer in mℓ/min.
Level 3
Shemy placed three empty tanks side by side. The smallest tank has a crack at its side and the base area of each tank is 16 cm2. After she turned on the tap for 64 minutes, the height of the water in the smallest tank became 6 cm although 0.5 mℓ of water is leaking out of the crack per minute. Find the rate of flow of water from the tap. Give the answer in mℓ/min.
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Level 3
5 tailors can sew 10 shirts in 10 hours on average.
How long will 50 tailors take to sew 50 shirts on average?
3 m
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Level 2 The graph shows the temperature of water in a pot from 08 00 to 08 30.
- For how many minutes was the temperature of the water 50°C and below?
- During which two 5-minute intervals did the temperature of water decrease at the same rate?
- What was the change in temperature per minute from 08 25 to 08 30? Give your answer in °C per minute.
Level 2 The graph shows the temperature of water in a pot from 08 00 to 08 30.
- For how many minutes was the temperature of the water 50°C and below?
- During which two 5-minute intervals did the temperature of water decrease at the same rate?
- What was the change in temperature per minute from 08 25 to 08 30? Give your answer in °C per minute.
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Level 3
A pool measuring 50 m x 25 m x 2 m was completely filled with water. The water was draining out of the tank at a constant rate and became completely empty after 25 minutes.
- What fraction of the pool was filled with water at the end of 24 minutes? Express the answer in the simplest form.
- How many litres of water was drained out of the pool at the end of 10 minutes?
4 m
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Level 3
A rectangular container 100 cm by 50 cm by 45 cm was 20% filled with water. A tap was turned on to fill it up with water at a rate of 9 ℓ /min. Every 30 seconds after the tap was turned on, an iron ball of volume 500 cm3 was added to the container. How many iron balls of the same volume would there be in the container when the container is 100% filled with water?
4 m
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Level 3
This figure is not drawn to scale. A rectangular glass tank 72 cm by 50 cm by 35 cm has 2 compartments, X and Y, with a water height of 30 cm in X and 15 cm in Y. A hole in the slider caused water to leak from X to Y. It was found that the water level in both compartments became the same after some time.
- What is the height of water in the tank now?
- It took 112 h for the water in both compartments to reach the same level. Assuming that water leaked at a constant rate, how much water flowed from X to Y in 1 minute? Express the answer to 1 decimal place in cm³.
Level 3
This figure is not drawn to scale. A rectangular glass tank 72 cm by 50 cm by 35 cm has 2 compartments, X and Y, with a water height of 30 cm in X and 15 cm in Y. A hole in the slider caused water to leak from X to Y. It was found that the water level in both compartments became the same after some time.
- What is the height of water in the tank now?
- It took 112 h for the water in both compartments to reach the same level. Assuming that water leaked at a constant rate, how much water flowed from X to Y in 1 minute? Express the answer to 1 decimal place in cm³.
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Level 3 PSLE
At first,
18 of a tank was filled with water. A tap was turned on for 30 min for more water to flow into the tank. It was then turned off. The line graph shows the volume of water in the tank over the 30 min.
- How many litres of water flowed into the tank in one minute?
- At the end of 30 min, what fraction of the tank was filled with water?
- The tap was turned on again to fill up the tank at the same rate as before. How many more minutes did it take for the tank to be filled completely?
Level 3 PSLE
At first,
18 of a tank was filled with water. A tap was turned on for 30 min for more water to flow into the tank. It was then turned off. The line graph shows the volume of water in the tank over the 30 min.
- How many litres of water flowed into the tank in one minute?
- At the end of 30 min, what fraction of the tank was filled with water?
- The tap was turned on again to fill up the tank at the same rate as before. How many more minutes did it take for the tank to be filled completely?
Image in this question is not available.
Level 3
The figure, not drawn to scale, shows an empty tank measuring 20 cm by 15 cm by 15 cm. Water flows from Tap A at a rate of 300 mℓ per minute and from Tap B at a rate of 180 mℓ per minute. Tower X and Tower Y have a base area of 20 cm2 and 30 cm2 respectively. Water is drained out of the container at a rate of 130 mℓ per minute. Find the height of the water level after 13 minutes.
Level 3
The figure, not drawn to scale, shows an empty tank measuring 20 cm by 15 cm by 15 cm. Water flows from Tap A at a rate of 300 mℓ per minute and from Tap B at a rate of 180 mℓ per minute. Tower X and Tower Y have a base area of 20 cm2 and 30 cm2 respectively. Water is drained out of the container at a rate of 130 mℓ per minute. Find the height of the water level after 13 minutes.
Image in this question is not available.
