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?

Open in App

Solution

Original driving speed of Anita = 85.6 km/h

Speed limit for driving = 55 km/h

∴ Speed reduced by her to be within the speed limit

= Original driving speed of Anita − Speed limit for driving

= 85.6 km/h − 55 km/h

= 30.6 km/h

$\begin{matrix} 8 & 5 & . & 6 \\ - & 5 & 5 & . & 0 \\ 3 & 0 & . & 6 \end{matrix}$
Thus, Anita needs to reduce her speed by 30.6 km/h to be within the speed limit.

Suggest Corrections

Similar questions

Q. In planning for a car trip, Joan estimated both the distance of the trip, in miles, and her average speed, in miles per hour. She accurately divided her estimated distance by her estimated average speed to obtain an estimate for the time, in hours, that the trip would take. Was her estimate within 0.5 hour of the actual time that the trip took?
(1) Joan's estimate for the distance was within 5 miles of the actual distance.
(2) Joan's estimate for her average speed was within 10 miles per hour of her actual average speed.

Q. Taylor leaves her house and bikes north at a constant speed of

10

miles per hour. If her dad leaves the same house two hours later, driving north at a constant speed of

15

miles per hour, how long will it take him, in hours, to reach Madison?

Q. A Bus was moving with a speed of 30 km per hour and car was moving with a speed of 40 km per hour. If after 4 hours car was able to move ahead of bus, by how much distance was the car behind the bus at the start?

Q. Driving at a speed of 60 miles per hour, how long would it take to drive 240 miles?

Jasleen covered a distance of 1560 miles between city P and city Q taking a total of 10 hours. If part of the distance was covered at 120 miles per hour speed and the balance at 160 miles per hour speed, how many hours did she travel at 120 miles per hour?

Join BYJU'S Learning Program