Question

If ‘𝒅’ km is covered in a span of 4 hours, find the speed at which the body is travelling.

• A.
  cannot be determined
• B.
  $\frac{4}{d}$ km/h
• C.
  $4$ km/h
• D.
  $\frac{d}{4}$ km/h

Answer 1

The correct option is D

$\frac{d}{4}$ km/h
Since we know the relationship between speed, distance and time, i.e.,
$Speed=\frac{Distance}{Time}$
In the given question, we have
Distance = d km
Time = 4 hours
Therefore, we have
Speed = $\frac{d}{4}$ km/hour or $\frac{d}{4}$ km/h