Questions

From Worst to Best

31 P5.PC.JM.17083127

Level 3
A rectangle measures 20 cm by 16 cm. Its length and breadth are both increased by 25%. Find the percentage increase in its area.

4 m

Attempt

32 P5.PC.JM.17083126

Level 3
A rectangle is 25 cm long and 20 cm wide. Its length is now increased by 40% and its breadth is increased by 50%. Find the perimeter of the new rectangle.

4 m

Video Attempt

Percent change by Area Perimeter Rectangle

33 P5.PC.JM.17083113

Level 3
The length and the breadth of a rectangle are both decreased by 20%. By how many percentage will its area be decreased by?

4 m

Video Attempt

Percent change by Percent change Area Perimeter Rectangle

34 P5.PC.JC.17083304

Level 3
The figure shows an irregular 5-sided figure and a square. The area of the five-sided figure was three times the area of the square. After the shaded part was removed, the area of the remaining square became 15% of the total remaining area of both figures. If the area of the shaded part is 16 cm², find the remaining area of the 5-sided figure.

4 m

Attempt

Area perimeter Overlapping area Percent to units Times as many Unchanged difference Units table

35 P5.FR.JM.17083011

Level 3
The figure, not drawn to scale, is made up of Rectangle A and Rectangle B overlapping each other. The area of Rectangle A is ³₄ the area of Rectangle B. Given that ¹₄ of Rectangle A is shaded. What fraction of the total area of the figure is unshaded?