Question

A giraffe runs $ 27 $ miles in one hour. At this rate, how far does a giraffe run in $ 3 $ hours?

Answer 1

Hint: Here in the given question, the speed of the giraffe running is in the unit of miles per hour. The miles per hour is a unit to measure the speed. The ratio of distance to the time in which the distance was covered is known as speed. In order to solve this question, we will check if all the units given are the same or not and use the arithmetic operation of multiplication to get our desired result.

Complete step by step solution:
It is given that a giraffe runs $ 27 $ miles in one hour. We have to find how far it can run in $ 3 $ hours. In order to solve this question, we will simply multiply $ 27 $ by $ 3 $ .
We get,
 $ \Rightarrow \dfrac{{27\;miles}}{{hour}} \times 3\;hours $
As the unit hour is in numerator as well as in denominator, so it cancels out and we are left with,
 $
   \Rightarrow \dfrac{{27\;miles}}{{hour}} \times 3\;hours \\
   \Rightarrow 27 \times 3\;miles \\
   \Rightarrow 81\;miles \;
  $
Therefore, a giraffe can run $ 81 $ miles in $ 3 $ hours.

Note: The given question was an easy one. All we did was use the arithmetic operation of multiplication and we got our result. Usually there is not any area of mistakes in such easy questions but yet students should check their calculation properly. If the units in the question given are not the same, then before starting solving it students should convert all the units into one common unit, so that there is no scope of error. Different units can be easily converted into one another.