SOLUTION: 15. Milltown has 1,600 phones, of which � are dial. If 1/3 of these are replaced by touch-tone phones and 300 additional touch-tone phones are installed, what fraction of the phone

Question 644529: 15. Milltown has 1,600 phones, of which � are dial. If 1/3 of these are replaced by touch-tone phones and 300 additional touch-tone phones are installed, what fraction of the phones are now manually operated?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Milltown has 1,600 phones, of which � are dial. If 1/3 of these are replaced by touch-tone phones and 300 additional touch-tone phones are installed, what fraction of the phones are now manually operated?
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How is manually operated related to dial and touch-tone?
Aren't both manually operated?

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