Level 3
Five numbers were written on the whiteboard as shown:
Write down the 3 numbers that will give an average of 51.
After John wrote 2 -digit number on the same whiteboard, the new average of the six numbers became a multiple of 3. What was the largest possible 2-digit number written by John?
Level 3
Five numbers were written on the whiteboard as shown:
Write down the 3 numbers that will give an average of 51.
After John wrote 2 -digit number on the same whiteboard, the new average of the six numbers became a multiple of 3. What was the largest possible 2-digit number written by John?
Level 3 PSLE
Betty and Zhulian each had a plate of dough of the same mass for making biscuits. The same mass of dough was used for each biscuit. Betty made 40 biscuits and had 50 g of dough left. Zhulian made 10 biscuits and had 1.1 kg of dough left.
What was the mass of dough needed for each biscuit?
With the remaining dough from both girls, how many more such biscuits can be made at most?
Level 3
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?
Level 3
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?
Level 2 PSLE
The bar graph shows the number of coloured pens sold by a shop. The table shows the prices of the pens.
What fraction of the pens sold were black pens? Give the answer in the simplest form.
From the sale of the pens, which coloured pens collected the least amount of money? What was the amount? Give the answers in the following way. (Eg Green, $1)
Level 2 PSLE
The bar graph shows the number of coloured pens sold by a shop. The table shows the prices of the pens.
What fraction of the pens sold were black pens? Give the answer in the simplest form.
From the sale of the pens, which coloured pens collected the least amount of money? What was the amount? Give the answers in the following way. (Eg Green, $1)
Level 3 PSLE
A rectangular block A was cut along the dotted line into two smaller rectangular blocks of equal height, B and C, as shown. The volume of C is 1400 cm3 more than that of B.
What is the height of each block?
Pete packed 6 of block C such that they fit exactly into a box with a square base. The box has the same height as C. At most, how many of block B can be packed into such a box?
Level 3 PSLE
A rectangular block A was cut along the dotted line into two smaller rectangular blocks of equal height, B and C, as shown. The volume of C is 1400 cm3 more than that of B.
What is the height of each block?
Pete packed 6 of block C such that they fit exactly into a box with a square base. The box has the same height as C. At most, how many of block B can be packed into such a box?
Level 3
A rectangular tank, 80 cm by 50 cm by 40 cm, is filled with water to a height of 5 cm. The ratio of the volume of water in the tank to that in a pail is 5: 2. If 23 of the pail is filled with water, find
the volume of the pail.
the minimum number of such pails to fill the tank.
Level 3 PSLE A company offered 120 radios at 20% discount during a 7-day sale. The line graph shows the number of radios left unsold at the end of each day.
On which day was the most number of radios sold? Give your answer in number. (Eg 1)
What percentage of the 120 radios were sold in the first five days of the sale?
During the sale, the discounted price of the radios was $60. After the sale, the remaining radios were sold without discount. What was the total amount of money collected from selling all 120 radios?
Level 3 PSLE A company offered 120 radios at 20% discount during a 7-day sale. The line graph shows the number of radios left unsold at the end of each day.
On which day was the most number of radios sold? Give your answer in number. (Eg 1)
What percentage of the 120 radios were sold in the first five days of the sale?
During the sale, the discounted price of the radios was $60. After the sale, the remaining radios were sold without discount. What was the total amount of money collected from selling all 120 radios?
