Question

Lucy spends 4 hours a week babysitting. Her sister Lily spends seven eighths as much time babysitting. Does Lily babysit for more or less than 4 hours.

Answer 1

Lily babysit for less than 4 hours.

Explanation:

Given:

Lucy spends in a week babysitting for 4 hours.

Lily spends seven-eighths of 4 hours.

Now, to find whether Lily babysit for more than 4 hours or less than that.

Number of hours Lucy babysit = 4 hours.

So, to get the hours Lily babysit:

`(7)/(8)\ of\ 4\ hours.`

`=(7)/(8)* 4\\\\=(28)/(8) \\\\`

On simplifying we get:

`=(7)/(2) \\\\=3(1)/(2)\ hours.`

Thus, Lily spends
`3(1)/(2)\ hours` for babysitting which is less than 4 hours.

Therefore, Lily babysit for less than 4 hours.