Early one morning a family travelled to a shopping centre at 35 km/h.

After a day of Christmas shopping they returned, over exactly the same distance, at a crawl of only 14 km/h.

What was their average speed over the entire journey?

+2 votes

Early one morning a family travelled to a shopping centre at 35 km/h.

After a day of Christmas shopping they returned, over exactly the same distance, at a crawl of only 14 km/h.

What was their average speed over the entire journey?

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