How much money did Darlene start with?
[2700] How much money did Darlene start with? - Franklin lent Darlene as much money as she already had, then she spent $10. The next day, Franklin lent her as much money as she now had and again, she spent $10. On the third day Franklin once again lent her as much money as she now had and she spent $10, leaving her broke. How much money did Darlene start with? Express result to the accuracy of 2 decimal. - #brainteasers #math #riddles - Correct Answers: 69 - The first user who solved this task is Roxana zavari
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How much money did Darlene start with?

Franklin lent Darlene as much money as she already had, then she spent $10. The next day, Franklin lent her as much money as she now had and again, she spent $10. On the third day Franklin once again lent her as much money as she now had and she spent $10, leaving her broke. How much money did Darlene start with? Express result to the accuracy of 2 decimal.
Correct answers: 69
The first user who solved this task is Roxana zavari.
#brainteasers #math #riddles
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What a talent...

A family was visiting an Indian reservation when they happened upon an old tribesman lying face down in the middle of the road with his ear pressed firmly against the blacktop.

The father of the family asked the old tribeman what he was doing. The tribesman began to speak..."woman, late thirties, three kids, one barking dog in late model, white, four-door station wagon, traveling at 65 m.p.h.

"That's amazing!" exclaimed the father. "You can tell all that just by listening to the ground?"

"No," said the old tribesman, weakly. "They just ran over me five minutes ago!"

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Jean(-Rodolphe) Perronet

Died 27 Feb 1794 at age 85 (born 8 Oct 1708).Jean-Rodolphe Perronet was a French civil engineer who was renowned for his stone-arch bridges, especially the Pont de la Concorde, Paris. During construction of a bridge at Mantes in 1763, Perronet made the discovery that the horizontal thrust of a series of elliptical arches was passed along to the abutments at the ends of the bridge. Thus he was able to build extremely flat arches that were supported during construction by timbering (falsework) and mounted on very slender piers, which widened the waterway for navigation and reduced scour from the current.
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