Question

The energy saving from recycling one glass bottle will power the oven adam uses to cook the turkey for 7.5 min. Glass used for recycling costs 5p per kg. How much would the recycled glass cost to power thr oven for 6 hr?

Answer 1

This question is a little dodgy because we don't know how much a glass bottle weighs. I'll assume that one bottle is one kilogram.

This means that 1kg of glass can power the oven for 7.5 mins. Adam needs to power the oven for 6 hours, or 360 minutes, therefore he needs (360/7.5)kg of glass, which is 48 kg.
Glass costs 5p per kg, so 48kg will cost 240p
So the glass needed costs 240p or £2.40 (I assume the p meant pence.)
Hope this helped, it might be wrong given the glass may not be 1kg per bottle.