Word Problem Solver
Age, number, ratio, speed, work, rectangle and cost problems, solved step by step.
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How to use this calculator
Choose the type of problem (ages, consecutive numbers, sharing in a ratio, two travellers, work done together, rectangle perimeter, or items with a total cost). Enter the numbers from your question. The solver writes the equation, solves it step by step, and checks the answer.
How it's calculated
Each type is turned into an equation with a letter for the unknown, for example ages become kx + y = m(x + y). The equation is then solved exactly with the same engine as the Algebra Solver.
Worked example
A father is 4 times as old as his son. In 5 years he will be 3 times as old. Let the son be x: 4x + 5 = 3(x + 5), so x = 10. The son is 10 and the father is 40.
Frequently asked questions
Can I type the question as a sentence?
Not yet. For now you fill in the numbers. Understanding full sentences is planned for later.
What if my problem is a different type?
Tell us which kind you need and we will add it.
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Last updated October 2026. Results are for learning and guidance; always check important work. Calculations run in your browser and are not stored.