The longest line that can be drawn inside a cube is 6 cm. What is the surface area of the cube in square cm?
72
The sum of two numbers is 10 and their product is 15. What is the sum of their cubes?
550
The sum of three numbers is 12. What is the maximum product of these numbers?
64
Hint
Answer
In a box, there are 12 red balls, 8 green balls, and the rest are blue balls. If the probability of choosing a red ball at random is 1/5, what is the probability of choosing a blue ball?
2/3
Let ABCDEF be a regular hexagon. What is the difference between the measures of angles ABC and DFE in degrees?
90
If cbrt(x)=x, what is the sum of all possible values of x?
0
What is the mean deviation of the following of data: 5, 8, 12, 13, 17?
3.6
Five children are arguing over a broken toy. Alex said she didn't break it. Brenda said Alex broke it. Casey said Diane didn't break it. Diane said Brenda broke it. Esther said she didn't know who broke it. Only the guilty child is lying. Who broke the toy?