**Calculus word problems** give you both the question and the information needed to solve the question using text rather than numbers and equations. You’ll find a variety of solved word problems on this site, with step by step examples. Some have short videos. Click next to the type of question you want to see a solution for, and you’ll be taken to an article with a step be step solution:

Question Example |
Step by Step Solution Link |

Minimum profits for company x, whose profit function is f(t) = 100t2 – 50t + 9, | Minimum Profits |

Find the profit equation of a business with a revenue equation of 2000x – 10×2 and a cost equation of 2000 + 500x., | Maximum Profits |

Volume of the Largest Rectangular Box | Volume of Largest Box |

Find the maximum area of a rectangle whose perimeter is 100 meters. | Optimization |

A ball rolls along with a position of x(t) = 0.000015t5– 0.004t3 + 0.4t. What is the instantaneous velocity? | Instantaneous Velocity |

Find the volume of an egg | Volume of an Egg |

A textbook falls from a window. The book will dent your car if it’s going more than 100 feet per second. Will your car get dented? | Velocity of a Falling Object |

A rock is dropped into the center of a circular pond. The ripple moved outward at 4 m/s. How fast does the area change, with respect to time, when the ripple is 3m from the center? | Related Rates |

The length of a rectangular drainage pond is changing at a rate of 8 ft/hr and the perimeter of the pond is changing at a rate of 24 ft/hr. At what rate is the width changing? | Related Rates |

**Don’t see your question listed?** Use the search box at the top left of the page. We have hundreds of solved questions on the site, so yours might be there!

## Calculus Word Problems: General Tips.

Step 1: **Read through** the word problem carefully. Don’t skim or skip over phrases and sentences that may seem unimportant. You may miss details that change the entire meaning of the passage. Once you’ve read through the problem once, write down the answer that the question is asking for. Note the format that you need to give the answer in. For example, you might have to give certain units.

Step 2: Break the word problem down into individual statements about the scenario described in the word problem. Record any **numbers** or **equations** given in these statements. Note the units of measurement.

Step 3: Either extract the main equation from the word problem or **build the equation** using the information presented in the statements. Fill in as much of the equation as you can using the information from the word problem.

Step 4: **Solve the equation** to produce the answer needed to satisfy the word problem.

Step 5: **Double-check your calculations **and consider whether your answer makes sense in the context of the word problem.

Tips:

- Be sure to state the answer in the format in which it was requested.
- If the equation remains unsolvable, you may need to extract or build more equations using the rest of the available but unused information to answer the empty spaces in your main equation. This is one of the more difficult parts of solving
**calculus word problems**. It’s also one of the most important. Having a solid understanding of calculus, particularly the fact that derivatives represent the rate of change of the equation, will help you when creating the necessary equations.

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**Stephanie Glen**. "Calculus Word Problems" From

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