Problem-Solving and Data AnalysisVery hardEdge of a cube from mass and density
Problem-Solving and Data Analysis practice question
A solid cube of aluminium has a mass of 2,700 grams. The density of aluminium is 2.7 grams per cubic centimetre. What is the edge length of the cube, in centimetres?
Answer: 10
Volume = 2,700 ÷ 2.7 = 1,000 cm³, and the cube root of 1,000 is 10.
Common wrong answers
- If you answered 30
- 30 divides 2,700 by 90.
- If you answered 100
- 100 takes the square root of the volume instead of the cube root.
- If you answered 1000
- 1000 is the volume, not the edge.
More Problem-Solving and Data Analysis questions
- Very hard
An item priced at $200 is first marked down by 20%, and then an additional 10% is taken off the reduced price.… - Very hard
A data set of 6 test scores has a mean of 78. After a 7th score is added, the mean rises to 80. What was the 7… - Very hard
If one of the chips that failed inspection is selected at random, what is the probability that it was produced… - Very hard
The regular price of a bicycle at a shop was increased by 25%. Later, during a sale, this increased price was … - Very hard
What is the result when the mean number of pets is subtracted from the median number of pets? - Very hard
What is the value of x?
Not affiliated with the College Board. SAT is a trademark of the College Board.