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Calculate the number 5911

NUMBERMANIA: Calculate the number 5911 using numbers [4, 7, 4, 5, 12, 825] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 28

The first user who solved this task is Sanja Šabović.

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I Will Miss Them

My son and his wife stopped by Sunday unannounced to visit.
I wouldn't answer the door but I did hold up my new medicine container and pointed to the instructions.
Instructions read: 'Take one tablet before bedtime and Keep away from children.'

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African-American patents an ironing board

In 1892, a U.S. patent for a specialized “Ironing Board” was issued to the black American inventor, Sarah Boone, likely a former slave (No. 473,653). Her design featured a quite narrow padded board, curved to make it easier to iron sleeves. Numerous patents were issued before hers with similar titles. The first patent designated specifically as an “Ironing Table” was issued several decades earlier, in 1858, to W. Vandenburg and J. Harvey (No. 19,390). Unpatented styles evolved from long long before that, so no single inventor can be identified for the earliest ironing board. For example, J.H. Mallory's “Ironing Table,” patented 24 Oct 1871 (No. 120,296) more closely resembles today's adjustable-height, collapsible model.«

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