Daily Brain Teasers for Friday, 05 March 2021
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Calculate the number 1459

The first user who solved this task is Nílton Corrêa de Sousa.
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MAGIC SQUARE: Calculate A-B+C

The first user who solved this task is Nílton Corrêa de Sousa.
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Find number abc

The first user who solved this task is Nasrin 24 T.
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A mathematician, a physicist...
A mathematician, a physicist, and an engineer are all given identical rubber balls and told to find the volume. They are given any tools they want, and have all the time they need.
The mathematician uses a measuring tape to record the circumference. He then divides by two times pi to get the radius, cubes that, multiplies by pi again, and then multiplies by four-thirds and thereby calculates the volume.
The physicist gets a bucket of water, places 1.000000 gallons of water in the bucket, drops in the ball and measures the displacement to six significant figures.
The engineer writes down the serial number of the ball and looks it up online.
The mathematician uses a measuring tape to record the circumference. He then divides by two times pi to get the radius, cubes that, multiplies by pi again, and then multiplies by four-thirds and thereby calculates the volume.
The physicist gets a bucket of water, places 1.000000 gallons of water in the bucket, drops in the ball and measures the displacement to six significant figures.
The engineer writes down the serial number of the ball and looks it up online.
Which is a winning combination of digits?

The first user who solved this task is Nasrin 24 T.
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Julian Lowell CoolidgeDied 5 Mar 1954 at age 80 (born 28 Sep 1873). American mathematician and educator noted for numerous published works in theoretical mathematics. He earned a B.A. degree at Harvard (1895), then a B.Sc. (1897) from Oxford, England, the first natural science degree ever awarded at Oxford. He began teaching at Groton School, Conn. (1897-99) where one of his pupils was Franklin D Roosevelt, the future U.S. president. Coolidge was an instructor at Harvard University, taking leave to study abroad (1902-04) with Corrado Segre at Turin and Eduard Studyat the University of Bonn ( Ph.D. 1904). When he returned to Harvard, he remained there for the rest of his career. Later in life, he took an interest in his subject's history, writing Mathematics of the Great Amateurs (1949).« |
Calculate the number 992

The first user who solved this task is Nílton Corrêa de Sousa.
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Find number abc

The first user who solved this task is Nasrin 24 T.
#brainteasers #math
Which is a winning combination of digits?

The first user who solved this task is Nasrin 24 T.
#brainteasers #mastermind
Calculate the number 4436

The first user who solved this task is Nasrin 24 T.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A*B-C

The first user who solved this task is Nasrin 24 T.
#brainteasers #math #magicsquare
Find number abc

The first user who solved this task is Nasrin 24 T.
#brainteasers #math