Question

A water hose flow at 5litre a min,how long will it take to fill a 30litres bucket?.

Answer 1

`6` minutes.

Explanation:

Looking at your information:

• `"5 L = 1 minute"`

You are looking for:

• `"30 L = ? minute/s"`

In knowing this, you can use ratios to solve.

• `"5 L : 1 minute"`
• `"30 L : ? minutes"`

Now, multiply the `"30 L"` by `"1 minute"`

`"30 min" xx "1 L" = "30 min" * "L"`

Now, divide the value by the `"5 L"`

`("30 min" \ * \ "L") / "5 L" = "6 minutes"`

A more simple method to solve this would be to see how many times the number `5` fits into `30`. So,

`30 / 5 = 6`

Therefore you need `6` lots of `"5 L"` to fill the bucket. This `6` 'lots' is actually `6` 'minutes'.