Level 3
A rectangular container 40 cm long, 30 cm wide and 25 cm high is ⁴₅ filled with water. When some of the water is poured into an empty rectangular glass tank until it is completely full, 4 ℓ of water is left in the container.

1. How many litres of water was there in the container at first?
2. What is the height of the glass tank if it is 50 cm long and 25 cm wide?

Level 3
Xinyi had some 20-cent and 50-cent coins which added up to $20.30. She had 14 more 20-cent coins than 50-cent coins. How many 20-cent coins did she have?

Level 3
A puppy is 5220 g heavier than a cat. The total mass of the 2 animals is 11 kg. What is the mass of the puppy? (Give the answer in kilograms and grams.)

Level 3
During a candy sale, Sally paid $2 less for every 15 candies she bought. Each candy cost 60 cents. Sally paid a total of $38 for some candies. How many candies did she buy?

Level 3
Meiling paid $15 for some cakes. 16 of the cakes cost 50¢ each. The remaining cakes cost $1 each.

1. How much did Meiling pay for the cakes which cost 50¢ each?
2. What was the total cost of the remaining cakes?
3. How many cakes did she buy in all?

Level 3
There were some flights of steps with the same amount of steps. For the 1st staircase, Carl walked up some steps and ran up 7 steps. He took 98 seconds. For the next staircase, he ran up 15 steps and walked the rest of the steps, and took a total of 58 seconds. How long would Carl take to walk up 4 flights of steps of the same number of steps? Express the answer in min and s.

Level 3
Justin and Wesley each had the same volume of water. The water was used to pour into identical bottles. Justin filled up 16 bottles and had 4.8 ℓ of water left. Wesley filled up 8 bottles and had 6.4 ℓ of water left.

1. What was the capacity of each bottle? Give your answer in millilitres.
2. What was the total volume of water Justin and Wesley had at first? Give your answer in litres.

Level 3
Oscar Mobile Company has a few mobile phone service plans. Plan A offers 270 SMS and 90 minutes of talk time for $25.20. Plan B offers 370 SMS and 190 minutes of talk time for $35.20. Oscar Mobile Company is also going to launch Plan C which offers 170 SMS and 260 minutes of talk time. How much should Oscar Mobile Company charge for Plan C if the cost per SMS and the cost per minute of talk time do not vary across the three plans?

Level 3
Min saved two coins every day from Monday to Sunday by putting them into a glass jar. Each coin was either a 5¢ or 20¢ coin. The total value of the coins at the end of 5 weeks was $11.00. How many of the coins were 20¢ coins?

Level 3
Jim started saving part of his pocket money by putting 2 coins in a money box every day. Each coin was either a 20¢ or 50¢ coin. His mother also put on a $1 coin in the box every 7 days. The total value of the coins after 98 days was $82.30.

1. How many coins were there altogether?
2. How many of the coins were 50¢ coins?

Level 3
At 5.30 p.m., Bella and Brent left Hotel A for Hotel B at average speeds of 72 km/h and 50 km/h respectively. Upon reaching Hotel B, Bella rested for 20 minutes. She then headed back for Hotel A at an average speed of 72 km/h along the same route. Brent and Bella met each other on their way at 9 p.m.

1. How much more distance had Bella covered than Brent when they met on their way?
2. How far apart were Hotel A and Hotel B? Express the answer in mixed number.

Level 3
At 8 a.m., Shaira and Joana raced off together from the starting point of a trail. Shaira ran at an average speed of 3 m/s. Joana ran at an average speed of 4 m/s. Upon reaching the end of the trail, Joana rested for 5 minutes. She then immediately ran back along the same route at 4 m/s. At 8.40 a.m., Shaira met Joana.

1. Find the total distance covered by the two runners when they met each other. Express the answer in km.
2. Find the length of the trail in km.

Level 2
The distance around a running track is 426 m. Joyous ran round the track 6 times. How far did she run? (Give the answer in kilometres and metres.)

Level 3
Jake took part in a 25-km cycling race. There was a water refill station at half the distance of the race.

1. Jake stopped at the water refill station to refill his water bottle. How many kilometres was he away from the starting point to the water refill station?
2. After passing the water refill station, Jake cycled ⁷₁₀ of the remaining distance and stopped. How many metres was he away from the finishing point?

Level 3
During the school holidays, Vanessa spent ¹₈ of her day outside playing with her friends and 5 hours on playing board games. The rest of her time was spent in the house. How many hours did he spend in the house that day?

Level 3
Timothy took 15 min to jog from his home to his school. After that, he took 20 min to walk the same way home. His walking speed was 3 km/h slower than his jogging speed.

1. Find Timothy's jogging speed in km/h.
2. How far was the school from his home?

Level 3
Mrs Tan had 10 ℓ orange juice. She used ¹₂ of the orange juice for a picnic and ²₅ ℓ of the remaining orange juice to bake orange-flavoured cookies. How much orange juice did she have left? Give your answer in millilitres.