Time and Work Calculator
Last Updated: 8 April 2026
Time and Work Solver
Solve aptitude math problems for competitive exams
What is Time and Work Aptitude Guide?
Time and Work is a classic math concept used to determine the rate at which work is finished. It is based on the principle that the amount of work done is the product of the rate of work and the time taken (Work = Rate × Time). Our solver helps you bypass complex fraction calculations and gives you the final answer instantly.
📊 Practical Example
"If Ram can finish a task in 12 days and Shyam can do it in 24 days, you might think the average is 18. But together they work faster! Their combined effort finishes the job in (12*24)/(12+24) = 288/36 = 8 days."
⚠️ Common Mistake
Averaging the number of days. If A takes 10 days and B takes 20, they will NOT take 15 days together. They will always take LESS time than the fastest person working alone.
How it Works & Benefits
2 or 3 People Mode
Instantly solve problems involving two or three individuals working together.
Step-by-Step Formula
Understand the logic behind the solution with the visible formula breakdown.
Competitive Exam Ready
Designed for SSC, Bank PO, and Campus Placement aptitude tests.
Frequently Asked Questions
Common queries answered for you
If Person A takes X days and Person B takes Y days, the time taken together is (X * Y) / (X + Y). For example, if A takes 10 days and B takes 20 days, together they take (10 * 20) / (10 + 20) = 200/30 = 6.67 days.
Efficiency is inversely proportional to the time taken. If Person A is twice as efficient as B, A will take half the time B takes to complete the same work.
Yes, this logic follows the same principle. You can use it to calculate the rate of work per day for any individual or group.