olve the following problem using the principle of inclusion and exclusion: Among a bank’s 250 customers with checking or savings accounts, 168 have checking accounts, 75 have regular savings accounts, 120 have money market savings accounts, and 70 have both checking and regular savings accounts. No customer is allowed to have both regular savings and money market savings accounts. a) How many customers have both checking and money market savings accounts? b) How many customers have a checking account but no savings account?

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