Level 3
When an ice box is packed with 25 identical bottles of soda, it has a mass of 18.4 kg. When the ice box is packed with 30 identical packets of milo, it has a mass of 7.5 kg. A bottle of soda weighs 470 g more than a packet of milo. What is the mass of the empty ice box in kg?
4 m
Level 3
The average weekly number of soft toys produced by Factory X and Y is 3486. The average weekly number of soft toys produced by Factory X and Z is 6586. If Factory Y produced 27 as many soft toys as Factory Z each week, how many soft toys does Factory X produce weekly?
5 m
Level 3
A fund-raising project lasted 2 weeks. In the first week, Team X raised 4 times as much money as Team Y. ln the second week, Team X raised another $240 while Team Y raised another $160. The total amount raised by Team X was thrice as much money as the total amount raised by Team Y. What was the total amount of money raised by the two teams?
4 m
Level 3
Samantha had twice as many pens as notebooks at first. She removed 4 pens and 3 notebooks each time. In the end, there were 18 pens and 1 notebook left. How many pens and notebooks did Samantha have at first?
4 m
Level 3
Andy had 4 times as much money as Julian. After Andy spent $164 and Julian spent $38, Julian had thrice as much money as Andy. How much did Andy and Julian have altogether at first?
4 m
Level 3
Ivory had 4 times as many cards as erasers. After she used 105 cards and 7 erasers, there were twice as many erasers as cards.
  1. How many cards did Ivory have in the end?
  2. How many erasers did Ivory have at first?
4 m
Level 3
Eric had an equal number of cream scones, strawberry scones and vanilla scones. After he ate 28 cream scones, some strawberry scones and vanilla scones, there were 55 scones left. The number of strawberry scones he ate was thrice the number of vanilla scones he ate. The number of strawberry scones left was 22 more than the number of cream scones left. How many cream scones were there at first?
4 m
Level 3
The figure is made up of four small squares. Linda had painted part of one square white and the rest of the figure grey. The perimeter of the white part is 38 cm and the perimeter of the grey part is 72 cm. Find the area of one small square.
4 m
Level 3
Pauline bought 200 blue and red balloons for a party. The number of red balloons was 35 times as many as the number of blue balloons. Pauline used 13 times as many red balloons as blue balloons and was left with twice as many red balloons as blue balloons. How many balloons did Pauline have in the end?
5 m