CEMC Fermat, 2009

Algebra Difficulty 3.0 AMC 10/12 Find the answer Canada

On Monday, Hank drove to work at an average speed of 70 km/h and arrived 1 minute late. On Tuesday, he left at the same time and took the same route. This time he drove at an average speed of 75 km/h and arrived 1 minute early. How long is his route to work?

(A) $30$ km (B) $35$ km (C) $45$ km (D) $50$ km (E) $60$ km

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