$24,000 ---------> City or State Bank
$3,000 < City Bank < $11000
State Bank< $18,000
City Bank = .06 of interest
State Bank = .11 of interest
Bold= Answer
State Bank - (18, 000)(.11)-----> $1980
} Total Interest = $2,430
City Bank - (6000)(.06)---------->$ 360
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State Bank - (13000)(.11) ----------> $1,430
} Total Interest = $2,090
City Bank - (11000)(.06) -------------> $660
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State Bank- (17000)(.11) ---------->$ 1870
} Total Interest = $2,290
City Bank- (7000)(.06) ---------------->$ 420