Are the following statement true? 45km: 60km = 12 hours: 15 hours.

45km: 60km =45/60 = 45÷15/60÷15   [∴ H.C.F.(45, 60) = 15] = 3/4 = 3: 4
12 hours: 15 hours =12/15=12÷3/15÷3   [∴H.C.F.(12, 15) = 3] =4/5=4:5
Since, the two ratios are not equal, therefore the given statement is false(F).