Mindbender

A: Sally was waiting there right under the clock. "You're five minutes late," she said. "What happened?" "Traffic, dear," replied Fred. "Not like most days at this time. I was driving at a nice steady speed to be here 10 minutes early. But the last 10 miles I could average only half that speed."

What was his speed for the first part of the run?

B: "Fred's new house?" Joe smiled. "It's an easy number to remember."

"One of your gimmicks, I suppose," Martha replied. "Well, let's have it."

Joe nodded "All right. Five times the first figure, plus three times the last, gives one less than the product of its two digits."

So what was the number?