three seperate saving acounts, wuts the total amount of those account? 1) any two accounts have a total of $1800 2) one of those accout contain at least $400 还是at least one of those account contain $400
three seperate saving acounts, wuts the total amount of those account? 1) any two accounts have a total of $1800 2) one of those accout contain at least $400 还是at least one of those account contain $400