Respuesta :
Answer:
810kg is the answer
Step-by-step explanation:
Hope this helps:)
420 divided by 4 is 105 so each day 7 horses eat 105 kg of grass,
105 divided by 7 = 15 so each horse intakes 15 kg of grass per day
9x15=135
135x6 =810
105 divided by 7 = 15 so each horse intakes 15 kg of grass per day
9x15=135
135x6 =810