The reading on a car’s speedometer may have an error up to 6.25%. The speed limit on a road is 65 miles per hour. The speedometer shows 67 miles per hour.

Is the car definitely going over the speed limit?
Yes
No
Explain your thinking.

No.
The speed limit is 65. Accounting for a 6.25% error, then there is a range of speeds that could be considered 65.
The range:
65(0.9375) = 60.9375
65(1.0625) = 69.0625
So, any speed within that range is within the error zone. Therefore, a reading of 67 is not necessarily speeding.

It equals 1373.5 that’s the solution