Level 3
Darryl was drawing a pyramid-like structure as shown. It consists of shaded and unshaded rectangles. The rest of the structure follows the same pattern.
How many shaded rectangles are there in Row 9?
In which row would there be 37 rectangles?
Darryl had drawn a total of 144 rectangles. How many shaded rectangles were there in the drawing?
Level 3
Darryl was drawing a pyramid-like structure as shown. It consists of shaded and unshaded rectangles. The rest of the structure follows the same pattern.
How many shaded rectangles are there in Row 9?
In which row would there be 37 rectangles?
Darryl had drawn a total of 144 rectangles. How many shaded rectangles were there in the drawing?
Level 3
Jade buys a coat, a vest, a sweater and a windbreaker. The average cost of these items is $36. The total cost of the sweater and the windbreaker is 35 of the total cost of the coat and the vest. If the coat costs $16.60 and the windbreaker costs $11.50, find the difference in cost between the vest and the sweater.
Level 3 35 of a rectangular tank with a base area of 800 cm2 is filled with water. Another 2.4 ℓ of water are needed to fill this tank to its brim. What is the height of the water in the tank?
