A relief worker needs to divide 360 bottles of water and 486 cans of food what is the largest number of relief supplies that can be put in each group?

To find the largest number of relief supplies that can be put in each group, we need to determine the greatest common divisor (GCD) of 360 and 486. The GCD of these two numbers is 18. Therefore, the largest number of relief supplies that can be put in each group is 18.