Question

If a windmill does 405 rotations in 5 minutes how long would it take to go 243 rotations

Answer 1

Find the time it takes for each spin to take place by dividing 5 minutes by 405 rotations:

`\frac{5\min }{405\text{ rotations}}`

Multiply that rate by 243 to find the time it takes for 243 rotations to take place:

`\frac{5\min}{405\text{ rotations}}*243\text{ rotations}=3\min`

Therefore, it will take 3 minutes to go 243 rotations.