Question

Anita was driving at a speed of 85.6 km per hour. The road had a speed limit of 55 km per hour. By how much should she reduce her speed to be within the speed limit?

Answer 1

Original driving speed of Anita = 85.6 km/hr

Speed limit for driving = 55 km/hr

∴ Speed reduced by her to be within the speed limit
= Original driving speed of Anita − Speed limit for driving
= 85.6 km/hr − 55 km/hr
= 30.6 km/hr

   85.6
− 55.0  
   30.6  

Thus, Anita needs to reduce her speed by 30.6 km/hr to be within the speed limit.