Questions

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96 P5.RA.JM.17083137

Level 2
In the circle, the ratio of the area of the shaded part to the area of the unshaded part is 3 : 1. Given that the area of the shaded part is 48 cm², what is the area of the circle?

2 m

Attempt

97 P5.ST.JC.18121204

Level 3
The average cost of some books is $30.
When a book that costs $90 is removed,
the average cost of the books becomes $10.
How many books are there in the end?

3 m

Attempt

2 averages Averaging out Average with unknown quantity Number x value Units equations Units table

98 P5.RA.JM.17083136

Level 2
The ratio of three sides of a triangle is 4 : 5 : 3. If the perimeter of the triangle is 60 cm, how long is the longest side of the triangle?

2 m

Attempt

Ratio to units Area Perimeter Units method

99 P5.ST.JC.18121205

Level 3
The average cost of some books is $30.
If 3 of the books are now each $15 more,
the average cost of the books becomes $35.
How many books are there altogether?

3 m

Attempt

2 averages Averaging out Average with unknown quantity Number x value Units equations Units table

100 P5.RA.JM.17083133

Level 2
Patricia is preparing a fruit punch by mixing syrup with water in the ratio of 2 : 3. How much syrup is needed if 18 litres of water is used?

2 m

Attempt

Ratio to units Volume Units method

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