I recently went to the shop and purchased 4 items.
Three of the items cost:
There was quite a long queue, and as I was quite bored, I was playing with my pocket calculator whilst waiting.
Very curiously, the 4 prices added to the same number as I got when I multiplied the 4 prices together.
What was the price of the 4th item?
[Ref: ZAPY] © Kevin Stone
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