If 12 cows produce 70 gallons of milk, how many gallons of milk would 42 cows produce?

Question

if 12 cows produced 70 gallons of milk, how many gallons of milk could 42 cows produce?

Answer 1

If 12 cows produced 70 gallons of milk, then 1 cow could produce 70/12=35/6 gallons.

42 cows could produce 42×35/6=7×35=245 gallons.