Replace the question mark with a number
[3355] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 770 - The first user who solved this task is Sanja Šabović
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 770
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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An idiot was taking sky-diving...

An idiot was taking sky-diving lessons. The instructor explained that it was time for his first jump, and all he had to do was jump from the plane, count to six, and pull the rip cord. A truck would be waiting for him in the field where he would land.
The man jumped from the plane when he was told to, and counted to six. When he pulled the rip cord, the parachute wouldn't open. He tried the reserve chute and that didn't open.
Frustrated, he muttered to himself as he fell, "I'll bet the damn truck won't be waiting for me either."
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Henry Gellibrand

Born 17 Nov 1597; died 16 Feb 1636 at age 38.English astronomer and mathematician who co-discovered (with John Marr) the geomagnetic secular variation. This refers to the magentic declination of the earth's magnetic field, the angle between magnetic north and true north, changing on a long-term time scale over years. He detected the direction of a compass needle in London had changed by seven degrees over a period of a half-century.He became professor of astronomy at Gresham College, London on 2 Jan 1627. His navigation textbooks helped improve English navigation at the time.Usingmanuscripts left unfinished whenhis friend Henry Briggsdied (1630), he completed volume two of Briggs'sTrigonometrica Britannica, in 1633.GellibrandpublishedA Discourse Mathematicall on the Variation of the Magneticall Needle, in 1635. He died the following year, at age 39.«[Image: Title page of Gellibrand's Discourse (1635).]
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