Question:

Which one of the following fractions is the largest? Give the answer in letter. (Eg a)

(a)^{1}_{3}

(b)^{2}_{5}

(c)^{4}_{9}

1 m
(a)

(b)

(c)

Four children made the following statements.
Winnie : The average of Yoko's mass and my mass is 39 kg.
Xtra : I am the heaviest.
Yoko : Zane is 2 kg lighter than Xtra.
Zane : Our masses are in consecutive order (In running sequence).
What is the total mass of Winnie, Xtra and Yoko ?

3 m
The average points accumulated by 6 children is 91.5. They have all attained different points which are whole numbers. The lowest point is 70 while the highest point is 100.

5 m
- Find the average points achieved by the 4 children whose marks lie between the highest and the lowest.
- Find the smallest possible second lowest mark among these 6 children.
- Find the largest possible second lowest mark among these 6 children.

What is the maximum number of cubes of edge 6 cm that can be cut from a foam cuboid, 67 cm by 36 cm by 27 cm?

2 m
Find the maximum number of cubes of edge 3 cm that can be cut from a foam cuboid, 27 cm by 24 cm by 18 cm?

2 m
Kelvin bought some chocolate came in square pyramid packages as shown in the figure. Each pyramid had a square base area of 1 cm^{2} and a vertical height of 1 cm.
He then packed the candies in a box measuring 6 cm by 4 cm by 7 cm. What was the maximum number of such candies he could pack into the box?

2 m

What is the maximum number of 3 cm cubes that can be filled into a 12 cm by 9 cm by 7 cm cuboid?

2 m

The solid is made up of 3-cm cubes. What is the volume of the minimum number of cubes that must be added to form a bigger cube?

2 m

Andrew wants to make a square with rectangular tiles each measuring 8 cm by 6 cm. How many such rectangular tiles must he use to make the smallest possible square?

2 m

The figure is not drawn to scale. It shows the net of a solid. It is made up of 4 identical rectangles and 2 identical squares. Line A is 30 cm long and Line B is 15 cm long.

- Find the volume of the solid.
- This solid is a cardboard carton containing small boxes of sweets. Each box of sweets is 3 cm by 2 cm by 1 cm. If all these small boxes of sweets in the carton occupy more than 75% of the carton's volume, what is the minimum number of small boxes of sweets in the carton?

4 m