Can you find the area...
[1891] Can you find the area... - There is a figure below (a rectangle). You can see different colors depicting different regions of the figure. The labels on the top of a region defines the area of that region. Can you find the area of the green shaded region labelled with a question mark? - #brainteasers #math #riddles - Correct Answers: 104 - The first user who solved this task is Neelima Subrahmanyam
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Can you find the area...

There is a figure below (a rectangle). You can see different colors depicting different regions of the figure. The labels on the top of a region defines the area of that region. Can you find the area of the green shaded region labelled with a question mark?
Correct answers: 104
The first user who solved this task is Neelima Subrahmanyam.
#brainteasers #math #riddles
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I am sorry doctor...

"I'm sorry doctor, I know this is unusual but I seem to have a lettuce stuck in my bottom!"
"Good grief," the doctor replies, "I'd better take a look."
"It's worse than that," the doctor says after the examination. "That's just the tip of the iceberg."
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Photophone

In 1882, the photophone was demonstrated by Alexander Graham Bell and Charles Sumner Tainter. In their device, a mirrored silver disc was made to vibrate by speech from a speaking tube. Light reflected off the disc was focused by a parabolic dish onto a selenium photocell. The variations in the reflected light were converted into electrical signals carried to headphones.
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