Mathematics for IGCSE & O level - Limits Of Accuracy (Section 1 - No. 46)

If the speed is found by dividing the distance by the time taken, which formula should be used to find the upper bound of the speed of an object?

UB(distance) / UB(time)

LB(distance) / LB(time)

UB(distance) / LB(time)

LB(distance) / UB(time)

To find the upper bound of speed, divide the upper bound of the distance by the lower bound of time.