Maths-
General
Easy
Question
A granite block in the shape of a right rectangular prism has dimensions 30 centimeters by
40 centimeters by 50 centimeters. The block has a density of 2.8 grams per cubic centimeter. What is the mass of the block, in grams? (Density is mass per unit volume.)
- 336
- 3,360
- 16,800
- 168,000
Hint:
The formula for volume of a right rectangular prism is V= whl, where w is the width, h is the height and l is the length of the prism.
The correct answer is: 168,000
Step 1 of 2:
A granite block in the shape of a right rectangular prism has dimensions 30 cm (=h) by 40 cm (=w) by 50 cm (=l).
Then, the volume of the granite block would be 
.
Step 2 of 2:
The block has a density of 2.8 grams per cubic cm.
Given the formula that Density = mass/unit volume, we get
Final Answer:
The mass of the block, in grams— D) 168,000
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