Question

When the speed limit was 55 mph, Bob could cover 400 miles in a day's driving. After the speed limit went up to 70 mph, how far would he go in an

Answer 1

See below

Explanation:

The question is missing information: " . . . how far would he go in an ???"

If the question is how far he would go in a [Pick a despised car model} ? The answer is still 400. The car would break down.

If the question is how far would he go in the same amount of time:

Whe the speed limit was 55, it would take Bob (55 miles/hr)*(X hr) = 400 miles

X = 7.273 hours to go 400 miles at 55 mph.

A speed limit of 70 mph would allow Bob the go:

(70 miles/hour)*(7.272 hours) = 509.1 miles