Level 3
Figure 1 shows a closed rectangular tank of dimensions 40 cm by 40 cm by 80 cm with a cube of edge 20 cm glued to its bottom left corner. The tank contains 70 litres of water. Figure 2 shows the same rectangular tank lying on its side. Find the height of the water level, in centimetres, corrected to 2 decimal places.
3 m
Level 2
PQRS is a square of side 16 cm. W, X, Y and Z are the mid-points of each side of the square PQRS. Find the area of WXYZ.
2 m
Level 2
The figure is not drawn to scale. WXYZ is a parallelogram. Find ∠XYV.
2 m
Level 1
The factors of a given number are listed. What are the missing factors in the blanks?
1, 2, 3, 4, (a) __, 8, 12, 16, (b) __, 48
2 m
Level 1
Which number has the same value as 30 hundreds and 5 ones?
3305 or 3005
2 m