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Calculate the number 866

NUMBERMANIA: Calculate the number 866 using numbers [3, 5, 6, 3, 90, 602] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 8

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

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The most romantic story

The most romantic story isn't Romeo and Juliet who died together, but Grandma and Grandpa who grew old together.

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East River Gas Tunnel

In 1892, the East River Gas Tunnel became the first completed tunnel under the East River, New York City, after two years' work. The connection was made between bores started from Long Island (26 Jun 1892) and on the New York side (10 Jul 1892). The Brooklyn Bridge over that river, opened 24 May 1883, took 13 years to build. The 2550-ft tunnel was designed to carry gas mains, not public traffic, and was built relatively smaller: 8½-ft high by 10½-ft wide. While finish work was done in the tunnel, a gas main was laid that first delivered gas on 15 Oct 1894. Illuminating gas from works on Long Island could then be distributed through Manhattan. The tunnelling success also provided practical knowledge enabling more tunnels under the East River. Work on four railroad tunnels commenced in 1904.«

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