Question

A telephone call between Newtown and Weston costs 15 cents for the first minute and 10 cents for each additional minute. Jen made a 12-minute call from Newtown to Weston. Her brother Tony also made a call from Newtown to Weston, but his call cost three times as much as Jen’s. How long was Tony’s call, in minutes? (Assume that Tony’s call was a whole number of minutes.)

Answer 1

Answer:

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