Roasting a turkey requires 15 minutes to preheat the oven. After that, it takes 12 minutes for every half kilogram of turkey.

Paula bought a turkey weighing 2.5 kg. At what time she should turn on the oven so that the turkey is ready at 8:00 pm?

6:30 pm
6:15 pm
6:45 pm
6:00 pm

**
This section requires Javascript.
**

You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.

For every $\dfrac {1}{2}$ kg of Turkey, 12 minutes of roasting is required.

For $2 \dfrac {1}{2}$ kg, $5 \times 12=60$ minutes of roasting is required.

15 minutes are required to heat the oven.

Totally, 1 hour 15 minutes are required. So, To finish at 8:00 p.m, she must start at 6:45 p.m.