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Dan travelled (2/3)12 = 8km

So Tony must have travelled 21-8 = 13km

Speed of Tony’s cycling = 13/(2/3) = 13(3/2) = 19.5km/h #

1 Reply 1 Like ✔Accepted Answer

Same answer as Chiefkiasu.

Please click “Accept Answer” for Chiefkiasu if his answer is correct.

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