Feeding again

[Sarah6]

Hey i dont suppose any of you know how many pounds of food there are in a bag of build up cubes and a bag of competition mix, i am trying to work out if it is worth the riding school buying it with only 12lbs being consumed per day.
Also if anyone knows how long it lasts once its been open be great thank you

 

[Chex]

I think they're 20 kg bags, which is about 44 lbs. If its stored in an airtight bin it would probably keep for a month or so, not really sure though!