2023/24 - Challenge Set #4

2 x 0 x 23 =

Mathematical Equivalence

ON

When Armani turned 12 years old, her brother Omar was half of Armani's age. Not that Armani just turned 20 years old, how old is Omar?

Mathematical Equivalence

ON

A large cube with a side length of 4cm is built using small cubes with a side length of 1cm. The small cubes are either white or blue. The blue cubes are used for the edges of the large cube, and the white cubes are used for the non-edges of the large cube. What is the blue surface are of the large cube?

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Laya ran 12 miles in 2.5 hours at a constant rate. How many minutes did it take her to run 1 mile? Give your answer as a decimal number.

Mathematical Equivalence

ON

Tiffany made 48 fluid ounces of smoothie and poured it all into three empty bottles. She then drank 5 fluid ounces from the first bottle, 6 fluid ounces from the second bottle, and 7 fluid ounces from the third bottle. Afterwards, she noticed that each bottle had the exact same amount of smoothie remaining. How much smoothie did she originally pour into the first bottle?

Mathematical Equivalence

ON

The perimeter of a square is 48 inches. After cutting the square into two rectangles as shown, the perimeter of one of the rectangles is 34 inches. What is the perimeter of the other rectangle?

Mathematical Equivalence

ON

Paige has 5 different skirts. In how many different ways can she select 2 skirts to pack for her upcoming trip?

Mathematical Equivalence

ON

Vishnu has a 10-foot by 22-foot rectangular bedroom. He buys 3 identical rectangular rugs and places them on the bedroom floor as shown below. What is the area of the bedroom floor that is not covered by the rugs?

Mathematical Equivalence

ON

Each of the nine numbers from 1 through 9 is placed in one of the nine boxes in the grid so that the sum of the three numbers in each row and in each column is the same. What number must be placed in the box with the question mark?

Mathematical Equivalence

ON