What is the speed of a car (km/hr) if it travels 16km in 13 minutes?

Distance = Speed * Time
Speed = Distance / Time
Time = Distance / Speed

The Problem Apply the above formula: Speed = Distance / Time

Speed = 16km / (13min/ 60 min) --> 60min = 1hr (your statement)

Speed = 16km/1 * 60/13
(Division by a fraction is done by multiplying the dividend by the reciprocal of the divisor, in accordance with the identity)

Speed = 960 / 13 (simplify)

Speed = 73.84615385 km/hr (solution)

That's an impossible question to answer if you don't write the time elapsed during those 16 km.

Around 74 km/hr ?