21 P4.ME.JC.17092704
Level 3
The diagram shows the mass of two identical boxes with objects A and B placed in them respectively.
  1. Given that object B is three times as heavy as object A, find the mass of object A.
  2. Find the mass of an empty box. Express your answer in grams.
3 m
Scale reading Mass Model Times-as-many Units method
22 P4.AN.JM.17092806
Level 3
The figure is not drawn to scale. ∠ABC is a right angle. ∠x is twice of ∠y. Find ∠x.
3 m
Right angle Model Times-as-many Units method
23 P4.DE.NK.23011014
Level 2
A jacket costs $4.70. A hoodie costs four times as much as the jacket. Find the total cost of the hoodie and the jacket.
2 m
D Multiplication Money Model Times-as-many Units method
24 P4.DE.JM.171010118
Level 2
Jonathan paid $18.40 for a CD. He bought another MP3 player which cost 4 times as much as the CD. What was the total cost of the MP3 player and the CD?
2 m
D Multiplication Money Model Times-as-many Units method
25 P4.DE.JM.17101088
Level 2
A roll of rope was cut into 2 pieces. One piece was 4 times as long as the other piece. If the longer piece was 20.05 m long, what was the length of the shorter piece?
2 m
D Division Length Model Times-as-many Units method
26 P4.AP.JM.17100172
Level 3
The perimeter of a rectangle is 48 cm. Its length is 3 times as long as its breadth. Find its area.
3 m
Rectangle Model Times-as-many Units method
27 P4.AP.JM.17100171
Level 3
Adam ran around a rectangular field from W to X to Y to Z and back to W. He covered a distance of 300 m. If the length of the field is twice the breadth, what is the area of the field?
3 m
Rectangle Model Times-as-many Units method
28 P4.AN.JM.17092840
Level 3
In the figure, EC is a straight line. ∠ADB is twice as large as ∠BDC but 20° less than ∠ADE. Find ∠ADE.
3 m
Angles on a straight line Model Comparison Model Times-as-many Units method
29 P4.AP.JM.17100174
Level 3
The rectangle, not drawn to scale, has a perimeter of 72 cm. Its length is 3 times as long as the breadth. Find the length of the rectangle.
3 m
Rectangle Model Times-as-many Units method
30 P4.AP.JM.17100198
Level 3
Brandon walked across a rectangular field from V to W to X to Y to Z and covered a distance of 560 m. The length of the field is thrice the breadth. If it cost $5 to cover 1 m2 of the field with grass, how much did it cost to cover the whole field with grass?
3 m
Rectangle Money Model Times-as-many Units method

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