The speed of the robot in kilometer per hour is 6.4 kilometers per hour.
Speed is defined as. The rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered.
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given,
The speed of the robot = 4 miles per hour
We know,
1 mile per hour= 1.6 kilometers per hour
4 miles per hour= 1.6×4= 6.4 kilometers per hour
Hence, the speed of the robot in kilometer per hour is 6.4 kilometers per hour.
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