Puzzle 108 - How far did they travel?

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 At ten o'clock one morning Mr. Smith and his wife left their house in Connecticut to drive to the home of Mrs. Smith's parents in Penn- sylvania. They planned to stop once along the way for lunch at Patri- cia Murphy's Candlelight Restaurant in Westchester.

The prospective visit with his in-laws, combined with business worries, put Mr. Smith in a sullen, uncommunicative mood. It was not until eleven o'clock that Mrs. Smith ventured to ask: "How far have we gone, dear?"


Mr. Smith glanced at the mileage meter. "Half as far as the distance from here to Patricia Murphy's," he snapped.


They arrived at the restaurant at noon, enjoyed a leisurely lunch, then continued on their way. Not until five o'clock, when they were 200 miles from the place where Mrs. Smith had asked her first question, did she ask a second one. "How much farther do we have to go, dear?"


"Half as far," he grunted, "as the distance from here to Patricia Murphy's. "


They arrived at their destination at seven that evening.

How many miles did they travel altogether? 

Find the solution here. 

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