Jacks father drives to work in 30 min when driving at his usual speed. When traffic is bad, he drives 30mph slower and the trip takes one hour longer. How far is Jacks Fathers work from home in miles

The distance of Jack's Father's work from home in miles is 45 miles.

Step-by-step explanation:

a) Data and Calculations:

Normal time taken by Jack's father to drive to work = 30 minutes

Time taken when traffic is bad = 1 hour longer

Speed when traffic is bad = 30 mph slower

Distance covered when traffic is bad, with time taken as 1 hour 30 minutes = time * speed = 1.5 * 30 = 45 miles

b) Jack's father normally drives at 90 mph (45 *2), this is why it normally takes him 30 minutes between his home and workplace when the traffic is not bad.  However, when traffic is bad, it takes him one hour longer and he drives at 30 mph slower.

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