41 P4.AP.JM.17100240
Level 3
The area of a rectangle is 72 cm2. Given that its length is twice its breadth, find its perimeter.
3 m
Rectangle Model Times-as-many Units method
42 P4.WN.JM.17102314
Level 2
Ken has some marbles. He has twice as many marbles as his brother. Given that they have 816 marbles altogether, how many marbles does his brother have?
2 m
Model Times-as-many Units method
43 P4.AN.NK.23041231
Level 3
The figure is made up of a square ABCD and a rectangle DEFG. ∠CDG = 69°. ∠x is twice of ∠y. Find ∠x.
3 m
Right angle Square Rectangle Overlapping angles Model Times-as-many Units method
44 P4.WN.JM.17102315
Level 2
Machine A produces thrice as many buns as Machine B in a day. Together, they produce 9408 buns in a day. How many buns can Machine B produce in a day?
2 m
Model Times-as-many Units method
45 P4.WN.JM.17102316
Level 2
In a school, there are 540 boys. There are thrice as many boys as girls. What is the enrolment of the school?
2 m
Model Times-as-many Units method
46 P4.AN.JM.17092845
Level 3
The figure shows a piece of rectangular paper ABCD folded at one of its corners A. ∠AEB is 4 times as large as ∠AEF. Find ∠AEB.
3 m
Rectangle Angles on a straight line Overlapping angles Folded figure Model Times-as-many Units method
47 P4.AP.JM.17100178
Level 3
The figure is made up of rectangle RSTU and squares PQYX and WYUV. The length of PQ is equal to the length of RS. The length of PX is twice the length of UV. Find the length of QR.
3 m
Length Square Rectangle Rectilinear figure Composite figure perimeter Equal stage Model Times-as-many Units method
48 P4.WN.JM.17102327
Level 3
There are four times as many red shirts as pink shirts in a sale. If there are 600 red and pink shirts altogether,
  1. how many red shirts are there?
  2. how many more red shirts than pink shirts?
3 m
W 4 operations Model Times-as-many Units method
49 P4.DE.JM.171010126
Level 3
Box A is 4 times as heavy as Box B. Box C is 6.74 kg heavier than Box B. The total mass of Box A and B is 68 kg.
  1. What is the mass of Box B?
  2. What is the mass of Box C?
4 m
D Addition & subtraction Mass Model Comparison Model Times-as-many Units method
50 P4.DE.JC.17100402
Level 3
Yoshi prepared some fruit punch for his party. For the fruit punch, he put in 1.23 ℓ of syrup and 4 times as much water as syrup. He then poured the fruit punch equally into 8 glasses. How much fruit punch were there in each glass? Round off your answer to 2 decimal places.
4 m
D Multiplication D Division D Round off Volume Model Times-as-many

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