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Find number abc

If 490ac + a408b = bbcb44 find number abc. Multiple solutions may exist.

Correct answers: 20

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

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Under the kilt...

The American tourist stood staring at the highland sentry standing guard outside Edinburgh Castle.

After a few minutes she went up to the sentry and asked 'I've always wanted to find out what's worn under the kilt'.

The sentry replied: 'There is nothing worn, Ma'am, its all in perfect working order'.

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James Douglas

Born 4 Nov 1837; died 25 Jun 1918 at age 80.Canadian-American metallurgist, mining engineer and philanthropist who developed the copper mining industry in the U.S. Southwest. He was co-inventor of the Hunt-Douglas process for copper extraction, which brought him to the attention of the Phelps-Dodge Corp. In 1881, he examined copper ore deposits in Arizona for the company which then from 1885 operated the Copper Queen Mine, at Bisbee, Arizona. Under Douglas, it became one of the top copper producing mines in the U.S. He grew wealthy, and became the president of Phelps-Dodge 1908-18. The company built the El Paso and Southwestern Railroad (from 1887) to transport its ore. He founded a huge smelting centre at the town of Douglas, Ariz., named for him.«

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