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Calculate the number 787

NUMBERMANIA: Calculate the number 787 using numbers [4, 7, 4, 7, 10, 764] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 3

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How Old?

When a new child visited our Sunday school, the teacher greeted him and asked his age. The little boy held up four fingers.
"Oh, you're four," said the teacher. "And when will you be 5?"
The child stared at her and after a few seconds replied, "When I hold up the other finger."

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Johann Gottfried Galle

Died 10 Jul 1910 at age 98 (born 9 Jun 1812). German astronomer who on 23 Sep 1846, was the first to observe the planet Neptune, whose existence had been predicted in the calculations of Leverrier. Leverrier had written to Galle asking him to search for the 'new planet' at a predicted location. Galle was then a member of the staff of the Berlin Observatory and had discovered three comets. In 1838, while assistant to Johann Franz Encke, Galle discovered the dark, inner C ring of Saturn at the time of the maxium ring opening. In 1851, he became professor of astronomy at Breslau and director of the observatory there. In 1872, he proposed the use of asteroids rather than regular planets for determinations of the solar parallax, a suggestion which was successful in an international campaign (1888-89).

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