Questions

From Best to Worst

66 P6.RA.TL.16010110

Level 3
The figure is not drawn to scale. It is made up of a square and a rectangle. The ratio of the area of the square to that of the rectangle is 3 : 4. After the shaded part is cut out, the ratio of the area of unshaded part of the rectangle to that of the unshaded part of the square is 2 : 1. Given the length of the square is 9 cm, find the area of the shaded part.

3 m

Video Attempt

67 P6.RA.TL.17042602

Level 3
The figure, not drawn to scale, on the right shows 2 rectangles overlapping each other. The ratio of the shaded area to the area of Rectangle X is 4 : 9. The ratio of the shaded area to the area of Rectangle Y is 3 : 6. Find the ratio of the unshaded area to the total area of the figure.

3 m

Attempt

Finding ratio LCM Area perimeter Rectangle Overlapping area Unchanged difference Units method

68 P6.AG.JC.15051409

Level 2 PSLE
Jasmine had a piece of ribbon 17p cm long. She formed a triangle, with sides measuring p cm, 5p cm and 30 cm, with part of the wire.

Express the length of the remaining ribbon in terms of p in the simplest form.
Jasmine used the remaining ribbon to form a rectangle of length 3p cm. If p = 8, what was the breadth of the rectangle?

3 m

Attempt

Algebra in 1 variable Algebra simplifying Algebra substitution Length Area perimeter Rectangle

69 P4.FR.JM.17101641

Level 2
Figure PQRS is a square. It is made up of 1 small square, 2 small triangles and 3 large triangles. PR and OS are straight lines. What fraction of the square PQRS is shaded?

3 m

Attempt

Fraction of a whole Cut & paste Area Perimeter Square Triangle

70 P5.VO.NK.23012637

Level 3
A cuboid has a volume of 300 cm³. Its base is a rectangle which has a perimeter of 32 cm. The ratio of the length to the breadth of the rectangle is 5 : 3. Find its height.

3 m

Attempt

Volume of cuboid Base area x height Area Perimeter Ratio to units Units method

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